Trace number 2076475

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 2.16567 2.17507

General information on the benchmark

Namecsp/os-taillard-20/
normalized-os-taillard-20-105-9.xml
MD5SUMd07eba8b6417f2f1d02309d4c67c10fc
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 benchmark1.51377
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1348
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-2076475-1247362870)
1.28/1.31	c Converted in 613 ms
1.49/1.52	c solving(HOME/instance-2076475-1247362870,1800000)
1.49/1.52	c solving(HOME/instance-2076475-1247362870,1800000)
2.09/2.16	c (ff_inout)
2.09/2.16	s SATISFIABLE
2.09/2.16	v 267 912 572 1092 98 961 365 1184 668 625 412 753 884 443 0 195 258 603 176 644 855 697 1164 435 0 961 336 189 909 596 92 492 450 1006 455 628 283 364 789 1240 99 346 410 267 336 874 531 637 175 1045 470 0 1139 792 706 286 667 273 904 967 1128 1197 628 1164 1027 955 1081 1225 366 438 552 695 188 465 96 0 276 792 875 1235 525 190 1028 517 0 453 290 552 193 930 1092 831 763 98 376 714 683 1006 625 1191 250 1260 726 346 492 941 0 96 653 510 1158 694 758 1081 1244 680 592 453 1005 915 625 844 570 456 549 1108 0 190 782 1257 802 722 366 992 98 916 752 1046 99 1197 1091 957 93 930 353 192 668 542 455 1168 0 970 701 365 165 795 358 625 842 269 992 1240 273 579 345 98 914 838 1294 760 0 499 1119 637 470 376 189 1018 701 268 219 1128 165 897 1007 784 474 281 1005 843 950 668 364 1059 0 751 69 592 1233 387 268 89 1134 454 988 0 855 701 1091 917 802 243 541 346 621 763 884 999 186 378 0 1065 188 385 880 657 970 607 237 281 680 407 753 269 517 98 796 915 766 343 909 621 510 755 831 668 566 795 369 897 195 451 856 99 286 877 904 911 714 0 176 512 722 268 339 999 742 1047 1028 856 65 1158 0 438 668 596 838 938 1119 701 341 571 465 172 376 938 1059 276 1017 594 549 179 263 0 835 85 606 695 957 191 0 507 682 259 178 912 1047 1065 434 843 955 875 340 777 65 456 572 1182 794 93 993 0 880 930 410 678 615 1058 842 534 387 85 1234 364 281 175 806 186 449 755 657 738 1135 0 615 1166 282 1269 179 378 512 416 1073 776 99 275 967 579 941 806 1168 603 670 896 1134 542 193 283 760 1151 1016 930 1076 714 376 454 819 1116 0 96 844 621 670 172 1024 445 345 730 989 525 1181 259 884 507 0 941 92 683 792 374 
2.09/2.17	
2.09/2.17	c Time=838 ms Backtracks=0
2.09/2.17

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-2076475-1247362870/watcher-2076475-1247362870 -o /tmp/evaluation-result-2076475-1247362870/solver-2076475-1247362870 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2076475-1247362870 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: 2.00 2.02 2.00 4/83 18205
/proc/meminfo: memFree=834352/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=7000 CPUtime=0
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 662 0 0 0 0 0 0 0 18 0 1 0 23351858 7168000 381 996147200 134512640 135105188 4294956096 18446744073709551615 134530912 0 0 4096 0 0 0 0 17 0 0 0
/proc/18205/statm: 1750 389 72 144 0 1234 0

[startup+0.0251591 s]
/proc/loadavg: 2.00 2.02 2.00 4/83 18205
/proc/meminfo: memFree=834352/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=62208 CPUtime=0.02
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 1093 0 0 0 1 1 0 0 18 0 1 0 23351858 63700992 806 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 15552 806 174 144 0 15036 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 62208

[startup+0.101165 s]
/proc/loadavg: 2.00 2.02 2.00 4/83 18205
/proc/meminfo: memFree=834352/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=62208 CPUtime=0.09
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 1146 0 0 0 4 5 0 0 18 0 1 0 23351858 63700992 859 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 15552 859 177 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301189 s]
/proc/loadavg: 2.00 2.02 2.00 4/83 18205
/proc/meminfo: memFree=834352/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=62208 CPUtime=0.29
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 1151 0 0 0 15 14 0 0 19 0 1 0 23351858 63700992 864 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 15552 864 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701233 s]
/proc/loadavg: 2.00 2.02 2.00 4/83 18205
/proc/meminfo: memFree=834352/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=62208 CPUtime=0.69
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 1159 0 0 0 33 36 0 0 23 0 1 0 23351858 63700992 872 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 15552 872 177 144 0 15036 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 62208

[startup+1.50132 s]
/proc/loadavg: 2.00 2.02 2.00 3/84 18206
/proc/meminfo: memFree=831080/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=62204 CPUtime=1.49
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 2748 0 0 0 80 69 0 0 25 0 1 0 23351858 63696896 2459 996147200 134512640 135105188 4294956096 18446744073709551615 134581755 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 15551 2459 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+1.90137 s]
/proc/loadavg: 2.00 2.02 2.00 3/84 18206
/proc/meminfo: memFree=831080/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=74632 CPUtime=1.89
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 3371 0 0 0 120 69 0 0 25 0 1 0 23351858 76423168 3079 996147200 134512640 135105188 4294956096 18446744073709551615 134570534 0 0 4096 2 0 0 0 17 0 0 0
/proc/18205/statm: 18658 3079 184 144 0 18142 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 74632

[startup+2.10139 s]
/proc/loadavg: 2.00 2.02 2.00 3/85 18207
/proc/meminfo: memFree=819936/2055920 swapFree=4192948/4192956
[pid=18205] ppid=18203 vsize=84940 CPUtime=2.09
/proc/18205/stat : 18205 (bprolog) R 18203 18205 15264 0 -1 4194304 4075 0 0 0 140 69 0 0 25 0 2 0 23351858 86978560 3606 996147200 134512640 135105188 4294956096 18446744073709551615 134730413 0 0 4096 2 18446744073709551615 0 0 17 0 0 0
/proc/18205/statm: 21235 3606 198 144 0 20719 0
[pid=18205/tid=18207] ppid=18203 vsize=84940 CPUtime=0
/proc/18205/task/18207/stat : 18207 (bprolog) S 18203 18205 15264 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 23352067 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) 2.09
Current children cumulated vsize (KiB) 84940

Child status: 0
Real time (s): 2.17507
CPU time (s): 2.16567
CPU user time (s): 1.46478
CPU system time (s): 0.700893
CPU usage (%): 99.5677
Max. virtual memory (cumulated for all children) (KiB): 84940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.46478
system time used= 0.700893
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4117
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= 442

runsolver used 0.005999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node87 at 2009-07-12 03:41:10
IDJOB=2076475
IDBENCH=56433
IDSOLVER=770
FILE ID=node87/2076475-1247362870
PBS_JOBID= 9506871
Free space on /tmp= 66260 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/os-taillard-20/normalized-os-taillard-20-105-9.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2076475-1247362870/watcher-2076475-1247362870 -o /tmp/evaluation-result-2076475-1247362870/solver-2076475-1247362870 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2076475-1247362870 1800

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

MD5SUM BENCH= d07eba8b6417f2f1d02309d4c67c10fc
RANDOM SEED=825239554

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:        834832 kB
Buffers:         75392 kB
Cached:         629216 kB
SwapCached:          8 kB
Active:         540588 kB
Inactive:       624336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        834832 kB
SwapTotal:     4192956 kB
SwapFree:      4192948 kB
Dirty:            2608 kB
Writeback:           0 kB
Mapped:         479440 kB
Slab:            40352 kB
Committed_AS:   650716 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 03:41:13