Trace number 2065750

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
bpsolver 09SAT 0.830872 0.839208

General information on the benchmark

Namecsp/os-taillard-15/
normalized-os-taillard-15-105-8.xml
MD5SUM5397915d5f29b2750a915fa9c415307c
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 benchmark0.830872
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size999
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
Global constraints used (with number of constraints)

Solver Data 

0.19/0.20	c bpsolver version 6.29.2009
0.19/0.20	c converting(HOME/instance-2065750-1247339005)
0.49/0.56	c Converted in 267 ms
0.58/0.65	c solving(HOME/instance-2065750-1247339005,1800000)
0.58/0.65	c solving(HOME/instance-2065750-1247339005,1800000)
0.80/0.83	c (ff_inout)
0.80/0.83	s SATISFIABLE
0.80/0.83	v 404 0 450 433 359 765 230 211 182 710 329 575 641 667 99 291 522 254 0 798 157 623 426 835 76 404 737 329 175 897 453 163 444 268 0 353 771 82 734 597 548 681 99 914 259 171 95 728 0 262 151 819 516 409 544 183 331 765 461 633 516 198 76 427 0 234 898 524 98 353 408 211 673 545 702 399 488 307 595 839 875 82 0 437 548 702 175 268 659 766 803 648 287 456 372 99 837 0 687 821 193 587 766 753 525 374 433 267 875 681 95 785 331 753 545 182 64 623 488 0 280 518 374 618 869 417 754 99 941 704 456 182 0 607 557 263 414 0 898 633 230 261 780 806 708 348 525 249 167 97 167 64 548 893 262 372 708 46 465 0 172 798 143 623 860 261 710 97 417 450 232 525 0 862 437 465 585 605 157 379 544 280 377 99 624 189 674 448 819 409 724 95 785 0 342 623 0 99 771 883 381 465 681 291 198 835 806 734 862 548 897 307 724 585 911 534 0 704 77 261 465 377 165 501 607 
0.80/0.83	
0.80/0.83	c Time=262 ms Backtracks=17
0.80/0.83

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-2065750-1247339005/watcher-2065750-1247339005 -o /tmp/evaluation-result-2065750-1247339005/solver-2065750-1247339005 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2065750-1247339005 1800 

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: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=62208 CPUtime=0.02
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 1093 0 0 0 2 0 0 0 18 0 1 0 20965203 63700992 806 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/14889/statm: 15552 806 174 144 0 15036 0

[startup+0.137336 s]
/proc/loadavg: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=62208 CPUtime=0.13
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 1125 0 0 0 7 6 0 0 18 0 1 0 20965203 63700992 838 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/14889/statm: 15552 838 177 144 0 15036 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 62208

[startup+0.201341 s]
/proc/loadavg: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=62208 CPUtime=0.19
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 1127 0 0 0 11 8 0 0 18 0 1 0 20965203 63700992 840 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/14889/statm: 15552 840 177 144 0 15036 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 62208

[startup+0.301353 s]
/proc/loadavg: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=62208 CPUtime=0.29
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 1128 0 0 0 16 13 0 0 19 0 1 0 20965203 63700992 841 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/14889/statm: 15552 841 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701736 s]
/proc/loadavg: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=70316 CPUtime=0.69
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 2063 0 0 0 41 28 0 0 23 0 1 0 20965203 72003584 1773 996147200 134512640 135105188 4294956096 18446744073709551615 134684447 0 0 4096 2 0 0 0 17 0 0 0
/proc/14889/statm: 17579 1773 184 144 0 17063 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 70316

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

[startup+0.811405 s]
/proc/loadavg: 2.18 2.11 2.02 4/74 14889
/proc/meminfo: memFree=1239748/2055920 swapFree=4192956/4192956
[pid=14889] ppid=14887 vsize=80560 CPUtime=0.8
/proc/14889/stat : 14889 (bprolog) R 14887 14889 14464 0 -1 4194304 2248 0 0 0 52 28 0 0 25 0 2 0 20965203 82493440 1958 996147200 134512640 135105188 4294956096 18446744073709551615 134728026 0 0 4096 2 18446744073709551615 0 0 17 0 0 0
/proc/14889/statm: 20140 1958 198 144 0 19624 0
Current children cumulated CPU time (s) 0.8
Current children cumulated vsize (KiB) 80560

Child status: 0
Real time (s): 0.839208
CPU time (s): 0.830872
CPU user time (s): 0.547916
CPU system time (s): 0.282956
CPU usage (%): 99.0067
Max. virtual memory (cumulated for all children) (KiB): 80560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.547916
system time used= 0.282956
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2266
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= 4
involuntary context switches= 264

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node90 at 2009-07-11 21:03:25
IDJOB=2065750
IDBENCH=54411
IDSOLVER=770
FILE ID=node90/2065750-1247339005
PBS_JOBID= 9506749
Free space on /tmp= 66228 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/os-taillard-15/normalized-os-taillard-15-105-8.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065750-1247339005/watcher-2065750-1247339005 -o /tmp/evaluation-result-2065750-1247339005/solver-2065750-1247339005 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2065750-1247339005 1800

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

MD5SUM BENCH= 5397915d5f29b2750a915fa9c415307c
RANDOM SEED=1178179385

node90.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		: 3000.212
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		: 3000.212
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1240228 kB
Buffers:         62672 kB
Cached:         656972 kB
SwapCached:          0 kB
Active:         243484 kB
Inactive:       516620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1240228 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1868 kB
Writeback:           0 kB
Mapped:          41960 kB
Slab:            40932 kB
Committed_AS:   233192 kB
PageTables:       1836 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= 66228 MiB
End job on node90 at 2009-07-11 21:03:26