Trace number 2089520

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 8.43372 8.51351

DiagnosticValue
ASSIGNMENTS102492
CHECKS40639300
NODES102492

General information on the benchmark

Namecsp/tightness0.35/
normalized-rand-2-40-16-250-350-27_ext.xml
MD5SUMeb871acdd36f38c6ca314a2281d59de9
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.43372
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints250
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension250
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.08/0.11	c mistral version 1.545
8.41/8.51	s UNSATISFIABLE
8.41/8.51	d CHECKS 40639263
8.41/8.51	d ASSIGNMENTS 102492
8.41/8.51	d NODES 102492 BACKTRACKS 102492 FAILURES 102493 RUNTIME 8.4 TOTALTIME 8.42 NODES/s 12201.4 CHECKS/s 4.83801e+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-2089520-1247390272/watcher-2089520-1247390272 -o /tmp/evaluation-result-2089520-1247390272/solver-2089520-1247390272 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2089520-1247390272.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 1.96 1.68 4/84 30976
/proc/meminfo: memFree=1793272/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=18576 CPUtime=0
/proc/30976/stat : 30976 (runsolver) R 30974 30976 28489 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 26089865 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209560595751 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/30976/statm: 4644 284 249 26 0 2626 0

[startup+0.064852 s]
/proc/loadavg: 2.00 1.96 1.68 4/84 30976
/proc/meminfo: memFree=1793272/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=0.04
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 710 0 0 0 4 0 0 0 20 0 1 0 26089865 6008832 689 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161282 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 689 412 29 0 282 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5868

[startup+0.101855 s]
/proc/loadavg: 2.00 1.96 1.68 4/84 30976
/proc/meminfo: memFree=1793272/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=0.08
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 711 0 0 0 8 0 0 0 20 0 1 0 26089865 6008832 690 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161282 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 690 412 29 0 282 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5868

[startup+0.301889 s]
/proc/loadavg: 2.00 1.96 1.68 4/84 30976
/proc/meminfo: memFree=1793272/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=0.28
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 711 0 0 0 28 0 0 0 22 0 1 0 26089865 6008832 690 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258073 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 690 412 29 0 282 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5868

[startup+0.701956 s]
/proc/loadavg: 2.00 1.96 1.68 4/84 30976
/proc/meminfo: memFree=1793272/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=0.68
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 711 0 0 0 68 0 0 0 25 0 1 0 26089865 6008832 690 996147200 1448431616 1448550632 4294956208 18446744073709551615 134865027 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 690 412 29 0 282 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5868

[startup+1.50109 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1792048/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=1.47
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 711 0 0 0 147 0 0 0 25 0 1 0 26089865 6008832 690 996147200 1448431616 1448550632 4294956208 18446744073709551615 135277668 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 690 412 29 0 282 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 5868

[startup+3.10136 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1791920/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=3.06
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 712 0 0 0 306 0 0 0 25 0 1 0 26089865 6008832 691 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264335 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 691 412 29 0 282 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 5868

[startup+6.30191 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1791856/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=6.23
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 712 0 0 0 623 0 0 0 25 0 1 0 26089865 6008832 691 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258092 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 691 412 29 0 282 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 5868

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

[startup+7.90118 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1791856/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=7.81
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 712 0 0 0 781 0 0 0 25 0 1 0 26089865 6008832 691 996147200 1448431616 1448550632 4294956208 18446744073709551615 135257808 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 691 412 29 0 282 0
Current children cumulated CPU time (s) 7.81
Current children cumulated vsize (KiB) 5868

[startup+8.30225 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1791856/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=8.21
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 712 0 0 0 821 0 0 0 25 0 1 0 26089865 6008832 691 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264335 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 691 412 29 0 282 0
Current children cumulated CPU time (s) 8.21
Current children cumulated vsize (KiB) 5868

[startup+8.50129 s]
/proc/loadavg: 2.00 1.96 1.68 3/85 30977
/proc/meminfo: memFree=1791856/2055920 swapFree=4192812/4192956
[pid=30976] ppid=30974 vsize=5868 CPUtime=8.41
/proc/30976/stat : 30976 (ld-linux.so.2) R 30974 30976 28489 0 -1 4194304 712 0 0 0 841 0 0 0 25 0 1 0 26089865 6008832 691 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258082 0 0 4096 0 0 0 0 17 0 0 0
/proc/30976/statm: 1467 691 412 29 0 282 0
Current children cumulated CPU time (s) 8.41
Current children cumulated vsize (KiB) 5868

Child status: 0
Real time (s): 8.51351
CPU time (s): 8.43372
CPU user time (s): 8.42772
CPU system time (s): 0.005999
CPU usage (%): 99.0628
Max. virtual memory (cumulated for all children) (KiB): 5868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.42772
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= 748
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= 216

runsolver used 0.012998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-12 11:17:52
IDJOB=2089520
IDBENCH=59570
IDSOLVER=769
FILE ID=node68/2089520-1247390272
PBS_JOBID= 9507281
Free space on /tmp= 66448 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/tightness0.35/normalized-rand-2-40-16-250-350-27_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-2089520-1247390272/watcher-2089520-1247390272 -o /tmp/evaluation-result-2089520-1247390272/solver-2089520-1247390272 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2089520-1247390272.xml

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

MD5SUM BENCH= eb871acdd36f38c6ca314a2281d59de9
RANDOM SEED=106208222

node68.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		: 3000.258
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		: 3000.258
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:       1793752 kB
Buffers:         21936 kB
Cached:         122904 kB
SwapCached:          0 kB
Active:         126848 kB
Inactive:        81220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793752 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1508 kB
Writeback:           0 kB
Mapped:          83864 kB
Slab:            38796 kB
Committed_AS:   308564 kB
PageTables:       2100 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= 66448 MiB
End job on node68 at 2009-07-12 11:18:00