Trace number 2076486

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 2.16667 2.17938

General information on the benchmark

Namecsp/os-taillard-20/
normalized-os-taillard-20-100-6.xml
MD5SUM822c8f0751f873c488a8bb0f5ccf69cd
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 benchmark2.16667
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1352
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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-2076486-1247362887)
1.29/1.31	c Converted in 642 ms
1.49/1.53	c solving(HOME/instance-2076486-1247362887,1800000)
1.49/1.53	c solving(HOME/instance-2076486-1247362887,1800000)
2.10/2.16	c (ff_inout)
2.10/2.16	s SATISFIABLE
2.10/2.16	v 647 868 417 555 1281 304 158 0 97 246 740 1199 196 376 451 955 326 171 1064 583 192 596 425 803 158 186 1040 286 1143 230 845 658 509 258 85 731 472 0 926 1118 630 1219 0 185 953 367 684 492 830 900 656 537 981 722 84 455 1151 987 281 326 95 441 807 834 1113 1135 964 270 180 579 1221 1049 516 634 1261 900 0 722 811 363 518 1092 85 90 0 270 349 483 647 192 1000 870 846 443 745 780 598 963 1143 1155 1197 1079 660 748 968 1102 589 97 1038 890 807 1159 553 182 281 0 363 454 1289 1235 697 277 1135 729 1274 1225 91 152 508 496 1023 1094 983 922 0 606 440 186 797 349 742 1064 1159 36 605 828 280 364 902 647 780 187 537 1093 97 0 987 439 844 1219 463 927 828 660 376 516 737 509 1127 286 189 0 1049 95 958 1221 1145 1238 589 1200 802 1064 987 1257 1180 845 909 185 365 1219 520 441 99 689 742 0 277 605 1130 884 187 967 99 534 900 658 361 251 347 751 827 634 0 1093 83 784 701 740 246 455 193 785 919 0 414 483 152 441 1060 534 171 705 852 230 330 273 1193 584 23 656 1040 279 878 96 730 414 164 356 1198 983 919 1169 270 1093 0 805 251 633 502 579 1281 270 0 1219 97 859 443 186 1054 968 788 919 1132 1065 633 542 258 367 724 1004 980 802 0 567 418 93 894 192 1035 357 1094 451 1169 435 454 376 660 630 915 295 634 660 900 909 506 99 983 1261 365 340 553 196 1065 330 347 295 425 759 0 852 1115 307 596 424 1204 36 1226 1060 724 164 981 182 452 330 1155 973 343 849 786 520 664 0 1269 171 1038 797 732 527 1115 418 343 96 307 433 1226 268 363 576 859 281 281 813 993 1102 705 365 443 0 915 99 647 1024 955 583 1051 193 866 1077 759 518 926 524 1274 1169 273 365 343 642 573 724 0 617 981 1113 830 96 186 745 443 441 
2.10/2.17	
2.10/2.17	c Time=834 ms Backtracks=0
2.10/2.17

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-2076486-1247362887/watcher-2076486-1247362887 -o /tmp/evaluation-result-2076486-1247362887/solver-2076486-1247362887 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2076486-1247362887 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: 2.07 2.03 2.00 4/83 18275
/proc/meminfo: memFree=834032/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=7000 CPUtime=0
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 662 0 0 0 0 0 0 0 18 0 1 0 23353558 7168000 380 996147200 134512640 135105188 4294956096 18446744073709551615 134530912 0 0 4096 0 0 0 0 17 0 0 0
/proc/18275/statm: 1750 388 72 144 0 1234 0

[startup+0.0317009 s]
/proc/loadavg: 2.07 2.03 2.00 4/83 18275
/proc/meminfo: memFree=834032/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=62208 CPUtime=0.03
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 1093 0 0 0 2 1 0 0 18 0 1 0 23353558 63700992 806 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 15552 806 174 144 0 15036 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 62208

[startup+0.101708 s]
/proc/loadavg: 2.07 2.03 2.00 4/83 18275
/proc/meminfo: memFree=834032/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=62208 CPUtime=0.09
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 1146 0 0 0 4 5 0 0 18 0 1 0 23353558 63700992 859 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 15552 859 177 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301731 s]
/proc/loadavg: 2.07 2.03 2.00 4/83 18275
/proc/meminfo: memFree=834032/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=62208 CPUtime=0.29
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 1151 0 0 0 16 13 0 0 19 0 1 0 23353558 63700992 864 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 15552 864 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701775 s]
/proc/loadavg: 2.07 2.03 2.00 4/83 18275
/proc/meminfo: memFree=834032/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=62208 CPUtime=0.69
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 1159 0 0 0 35 34 0 0 23 0 1 0 23353558 63700992 872 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 15552 872 177 144 0 15036 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 62208

[startup+1.50186 s]
/proc/loadavg: 2.07 2.03 2.00 3/84 18276
/proc/meminfo: memFree=830760/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=62204 CPUtime=1.49
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 2723 0 0 0 83 66 0 0 25 0 1 0 23353558 63696896 2434 996147200 134512640 135105188 4294956096 18446744073709551615 134593505 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 15551 2434 180 144 0 15035 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 62204

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

[startup+1.90191 s]
/proc/loadavg: 2.07 2.03 2.00 3/84 18276
/proc/meminfo: memFree=830760/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=74632 CPUtime=1.89
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 3371 0 0 0 123 66 0 0 25 0 1 0 23353558 76423168 3079 996147200 134512640 135105188 4294956096 18446744073709551615 134559893 0 0 4096 2 0 0 0 17 0 0 0
/proc/18275/statm: 18658 3079 184 144 0 18142 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 74632

[startup+2.10193 s]
/proc/loadavg: 2.07 2.03 2.00 4/85 18277
/proc/meminfo: memFree=819616/2055920 swapFree=4192948/4192956
[pid=18275] ppid=18273 vsize=84940 CPUtime=2.1
/proc/18275/stat : 18275 (bprolog) R 18273 18275 15264 0 -1 4194304 4075 0 0 0 143 67 0 0 25 0 2 0 23353558 86978560 3606 996147200 134512640 135105188 4294956096 18446744073709551615 134730162 0 0 4096 2 18446744073709551615 0 0 17 0 0 0
/proc/18275/statm: 21235 3606 198 144 0 20719 0
[pid=18275/tid=18277] ppid=18273 vsize=84940 CPUtime=0
/proc/18275/task/18277/stat : 18277 (bprolog) S 18273 18275 15264 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 23353768 86978560 3606 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 84940

Child status: 0
Real time (s): 2.17938
CPU time (s): 2.16667
CPU user time (s): 1.49277
CPU system time (s): 0.673897
CPU usage (%): 99.4169
Max. virtual memory (cumulated for all children) (KiB): 84940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.49277
system time used= 0.673897
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4119
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= 3
involuntary context switches= 440

runsolver used 0.009998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node87 at 2009-07-12 03:41:27
IDJOB=2076486
IDBENCH=56435
IDSOLVER=770
FILE ID=node87/2076486-1247362887
PBS_JOBID= 9506871
Free space on /tmp= 66260 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/os-taillard-20/normalized-os-taillard-20-100-6.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2076486-1247362887/watcher-2076486-1247362887 -o /tmp/evaluation-result-2076486-1247362887/solver-2076486-1247362887 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2076486-1247362887 1800

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

MD5SUM BENCH= 822c8f0751f873c488a8bb0f5ccf69cd
RANDOM SEED=1267894386

node87.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		: 3000.236
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		: 3000.236
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:        834512 kB
Buffers:         75588 kB
Cached:         629360 kB
SwapCached:          8 kB
Active:         540864 kB
Inactive:       624340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        834512 kB
SwapTotal:     4192956 kB
SwapFree:      4192948 kB
Dirty:            2716 kB
Writeback:           0 kB
Mapped:         479428 kB
Slab:            40420 kB
Committed_AS:   650764 kB
PageTables:       2804 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= 66260 MiB
End job on node87 at 2009-07-12 03:41:30