Trace number 2087774

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
pcs 0.3.2SAT 2.05969 2.08135

DiagnosticValue
ASSIGNMENTS925

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-105-2.xml
MD5SUM5f0508e61a9a70e89f6c5193dd83477c
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 benchmark0.116981
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size487
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 319565168
0.00/0.02	c Constructing HOME/instance-2087774-1247728334.xml  with 2058 constraints
0.00/0.05	c Solving 925 backtracks 8 restarts
1.96/2.08	s SATISFIABLE
1.96/2.08	c V0=0, V1=132, V2=472, V3=294, V4=210, V5=379, V6=95, V7=80, V8=333, V9=253, V10=0, V11=401, V12=200, V13=138, V14=138, V15=400, V16=244, V17=71, V18=472, V19=0, V20=303, V21=300, V22=0, V23=57, V24=400, V25=151, V26=228, V27=462, V28=253, V29=460, V30=333, V31=159, V32=0, V33=373, V34=80, V35=151, V36=200, V37=286, V38=69, V39=0, V40=95, V41=332, V42=281, V43=228, V44=462, V45=0, V46=376, V47=71, V48=159, 
1.96/2.08	v 0 132 472 294 210 379 95 80 333 253 0 401 200 138 138 400 244 71 472 0 303 300 0 57 400 151 228 462 253 460 333 159 0 373 80 151 200 286 69 0 95 332 281 228 462 0 376 71 159 
1.96/2.08	d ASSIGNMENTS 925

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-2087774-1247728334/watcher-2087774-1247728334 -o /tmp/evaluation-result-2087774-1247728334/solver-2087774-1247728334 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 319565168 HOME/instance-2087774-1247728334.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: 2.25 2.11 2.03 4/81 19139
/proc/meminfo: memFree=1487000/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=5356 CPUtime=0
/proc/19139/stat : 19139 (pcssolve) R 19137 19139 18531 0 -1 4194304 268 0 0 0 0 0 0 0 20 0 1 0 59901011 5484544 236 996147200 4194304 4889804 548682068800 18446744073709551615 4361936 0 0 4100 65536 0 0 0 17 1 0 0
/proc/19139/statm: 1339 236 197 169 0 50 0

[startup+0.0135569 s]
/proc/loadavg: 2.25 2.11 2.03 4/81 19139
/proc/meminfo: memFree=1487000/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=5356 CPUtime=0
/proc/19139/stat : 19139 (pcssolve) S 19137 19139 18531 0 -1 4194304 339 316 0 0 0 0 0 0 21 0 1 0 59901011 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 233632752452 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19139/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101573 s]
/proc/loadavg: 2.25 2.11 2.03 4/81 19139
/proc/meminfo: memFree=1487000/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=5944 CPUtime=0.08
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1172 657 0 0 8 0 0 0 23 0 1 0 59901011 6086656 803 996147200 134512640 135215973 4294956320 18446744073709551615 134958342 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 1486 803 406 171 0 411 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5944

[startup+0.301603 s]
/proc/loadavg: 2.25 2.11 2.03 4/81 19139
/proc/meminfo: memFree=1487000/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=6284 CPUtime=0.28
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1277 657 0 0 28 0 0 0 25 0 1 0 59901011 6434816 855 996147200 134512640 135215973 4294956320 18446744073709551615 134590078 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 1571 855 406 171 0 496 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6284

[startup+0.701668 s]
/proc/loadavg: 2.25 2.11 2.03 4/81 19139
/proc/meminfo: memFree=1487000/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=6712 CPUtime=0.67
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1368 657 0 0 67 0 0 0 25 0 1 0 59901011 6873088 946 996147200 134512640 135215973 4294956320 18446744073709551615 134610603 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 1678 946 406 171 0 603 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6712

[startup+1.5028 s]
/proc/loadavg: 2.25 2.11 2.03 3/82 19144
/proc/meminfo: memFree=1484496/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=7624 CPUtime=1.47
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1613 657 0 0 147 0 0 0 25 0 1 0 59901011 7806976 1191 996147200 134512640 135215973 4294956320 18446744073709551615 134600004 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 1906 1191 406 171 0 831 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7624

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

[startup+1.90287 s]
/proc/loadavg: 2.25 2.11 2.03 3/82 19144
/proc/meminfo: memFree=1484496/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=7876 CPUtime=1.86
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1683 657 0 0 186 0 0 0 25 0 1 0 59901011 8065024 1261 996147200 134512640 135215973 4294956320 18446744073709551615 134957876 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 1969 1261 406 171 0 894 0
Current children cumulated CPU time (s) 1.86
Current children cumulated vsize (KiB) 7876

[startup+2.00188 s]
/proc/loadavg: 2.25 2.11 2.03 3/82 19144
/proc/meminfo: memFree=1484496/2055920 swapFree=4192812/4192956
[pid=19139] ppid=19137 vsize=8004 CPUtime=1.96
/proc/19139/stat : 19139 (pcs.big) R 19137 19139 18531 0 -1 4194304 1710 657 0 0 196 0 0 0 25 0 1 0 59901011 8196096 1288 996147200 134512640 135215973 4294956320 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/19139/statm: 2001 1288 406 171 0 926 0
Current children cumulated CPU time (s) 1.96
Current children cumulated vsize (KiB) 8004

Child status: 0
Real time (s): 2.08135
CPU time (s): 2.05969
CPU user time (s): 2.04669
CPU system time (s): 0.012998
CPU usage (%): 98.9591
Max. virtual memory (cumulated for all children) (KiB): 8004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.04669
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2403
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= 19
involuntary context switches= 56

runsolver used 0.005999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node3 at 2009-07-16 09:12:14
IDJOB=2087774
IDBENCH=58796
IDSOLVER=733
FILE ID=node3/2087774-1247728334
PBS_JOBID= 9521495
Free space on /tmp= 66372 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-105-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087774-1247728334/watcher-2087774-1247728334 -o /tmp/evaluation-result-2087774-1247728334/solver-2087774-1247728334 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 319565168 HOME/instance-2087774-1247728334.xml

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

MD5SUM BENCH= 5f0508e61a9a70e89f6c5193dd83477c
RANDOM SEED=319565168

node3.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		: 3000.259
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		: 3000.259
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:       1487480 kB
Buffers:         74668 kB
Cached:         247176 kB
SwapCached:          0 kB
Active:         280416 kB
Inactive:       217652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1487480 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1976 kB
Writeback:           0 kB
Mapped:         196672 kB
Slab:            55376 kB
Committed_AS:   852960 kB
PageTables:       2124 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= 66372 MiB
End job on node3 at 2009-07-16 09:12:17