Trace number 2082953

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 0.266958 0.270561

DiagnosticValue
ASSIGNMENTS530
CHECKS1476930
NODES530

General information on the benchmark

Namecsp/os-gp/
normalized-gp10-08-1093.xml
MD5SUMbf78e921ba91dea8e58cc955c04517cb
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.266958
Satisfiable
(Un)Satisfiability was proved
Number of variables101
Number of constraints1000
Maximum constraint arity2
Maximum domain size1094
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1000
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
0.18/0.26	s SATISFIABLE
0.18/0.26	v 1093 89 134 417 695 1091 0 1092 1082 1030 418 56 1087 565 6 1061 802 0 71 835 15 975 1089 1 407 0 698 785 684 742 695 90 558 550 1090 1089 79 1082 1070 0 75 514 0 418 1077 517 1074 1047 1083 1082 107 19 1070 1078 20 1040 920 1041 0 386 742 1090 1088 1084 1079 1 93 1081 698 1091 92 534 386 506 1089 1087 1003 975 1092 63 2 71 107 785 0 118 803 448 6 802 920 517 557 802 694 447 699 1 565 1085 0
0.18/0.26	d CHECKS 1476931
0.18/0.26	d ASSIGNMENTS 530
0.18/0.26	d NODES 530 BACKTRACKS 335 FAILURES 335 RUNTIME 0.21 TOTALTIME 0.25 NODES/s 2523.81 CHECKS/s 7.033e+06

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-2082953-1247376301/watcher-2082953-1247376301 -o /tmp/evaluation-result-2082953-1247376301/solver-2082953-1247376301 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082953-1247376301.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: 2.36 2.12 2.04 4/81 25457
/proc/meminfo: memFree=1598664/2055920 swapFree=4192812/4192956
[pid=25457] ppid=25455 vsize=4804 CPUtime=0
/proc/25457/stat : 25457 (ld-linux.so.2) R 25455 25457 21012 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 24693591 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/25457/statm: 1201 163 138 29 0 16 0

[startup+0.0340361 s]
/proc/loadavg: 2.36 2.12 2.04 4/81 25457
/proc/meminfo: memFree=1598664/2055920 swapFree=4192812/4192956
[pid=25457] ppid=25455 vsize=5588 CPUtime=0.02
/proc/25457/stat : 25457 (ld-linux.so.2) R 25455 25457 21012 0 -1 4194304 616 0 0 0 2 0 0 0 18 0 1 0 24693591 5722112 595 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/25457/statm: 1397 595 378 29 0 212 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5588

[startup+0.101043 s]
/proc/loadavg: 2.36 2.12 2.04 4/81 25457
/proc/meminfo: memFree=1598664/2055920 swapFree=4192812/4192956
[pid=25457] ppid=25455 vsize=8100 CPUtime=0.08
/proc/25457/stat : 25457 (ld-linux.so.2) R 25455 25457 21012 0 -1 4194304 1280 0 0 0 8 0 0 0 18 0 1 0 24693591 8294400 1259 996147200 1448431616 1448550632 4294956208 18446744073709551615 134829017 0 0 4096 0 0 0 0 17 0 0 0
/proc/25457/statm: 2025 1259 421 29 0 840 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8100

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

[startup+0.201054 s]
/proc/loadavg: 2.36 2.12 2.04 4/81 25457
/proc/meminfo: memFree=1598664/2055920 swapFree=4192812/4192956
[pid=25457] ppid=25455 vsize=8292 CPUtime=0.18
/proc/25457/stat : 25457 (ld-linux.so.2) R 25455 25457 21012 0 -1 4194304 1300 0 0 0 18 0 0 0 18 0 1 0 24693591 8491008 1279 996147200 1448431616 1448550632 4294956208 18446744073709551615 134897000 0 0 4096 0 0 0 0 17 0 0 0
/proc/25457/statm: 2073 1279 421 29 0 888 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 8292

Child status: 0
Real time (s): 0.270561
CPU time (s): 0.266958
CPU user time (s): 0.25696
CPU system time (s): 0.009998
CPU usage (%): 98.6683
Max. virtual memory (cumulated for all children) (KiB): 8292

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.25696
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1345
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= 12

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node51 at 2009-07-12 07:25:01
IDJOB=2082953
IDBENCH=57656
IDSOLVER=769
FILE ID=node51/2082953-1247376301
PBS_JOBID= 9507098
Free space on /tmp= 66208 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/os-gp/normalized-gp10-08-1093.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082953-1247376301/watcher-2082953-1247376301 -o /tmp/evaluation-result-2082953-1247376301/solver-2082953-1247376301 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082953-1247376301.xml

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

MD5SUM BENCH= bf78e921ba91dea8e58cc955c04517cb
RANDOM SEED=1867736380

node51.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		: 3000.225
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		: 3000.225
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:       1599144 kB
Buffers:         55756 kB
Cached:         287236 kB
SwapCached:          0 kB
Active:         186648 kB
Inactive:       192372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1599144 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1560 kB
Writeback:           0 kB
Mapped:          56460 kB
Slab:            62988 kB
Committed_AS:   228164 kB
PageTables:       1884 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= 66204 MiB
End job on node51 at 2009-07-12 07:25:01