Trace number 426473

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, and are wall clock time (not CPU 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
MXC 2007-02-08SAT 6.15806 6.17425

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1456895752-14.SAT.shuffled.cnf
MD5SUMfa2304b8263a4aa6972ebd18df695b72
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004999
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51704
Number of clauses of size over 50

Solver Data (download as text)

6.09/6.17	c MXC attempting /tmp/evaluation/426473-1177825538/instance-426473-1177825538.cnf
6.09/6.17	c 0 assignments made, starting to guess now
6.09/6.17	c ===================================[MXC]=====================================
6.09/6.17	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
6.09/6.17	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
6.09/6.17	c =============================================================================
6.09/6.17	c |         0 |    1704     8520 |    1000       0       0     nan |  0.000 % |
6.09/6.17	c |       101 |    1704     8520 |    1100     101    1877    18.6 |  0.000 % |
6.09/6.17	c |       255 |    1704     8520 |    1210     255    4557    17.9 |  0.000 % |
6.09/6.17	c |       480 |    1704     8520 |    1331     480    8373    17.4 |  0.000 % |
6.09/6.17	c |       818 |    1704     8520 |    1464     818   14015    17.1 |  0.000 % |
6.09/6.17	c |      1324 |    1704     8520 |    1610    1324   22541    17.0 |  0.000 % |
6.09/6.17	c |      2083 |    1704     8520 |    1771    1277   21490    16.8 |  0.000 % |
6.09/6.17	c |      3222 |    1704     8520 |    1948    1530   25452    16.6 |  0.000 % |
6.09/6.17	c |      4930 |    1704     8520 |    2143    1289   20480    15.9 |  0.000 % |
6.09/6.17	c |      7492 |    1704     8520 |    2357    1707   28705    16.8 |  0.000 % |
6.09/6.17	c |     11337 |    1704     8520 |    2593    2015   35149    17.4 |  0.000 % |
6.09/6.17	c |     17105 |    1704     8520 |    2853    2594   43420    16.7 |  0.000 % |
6.09/6.17	c |     25754 |    1704     8520 |    3138    2684   45749    17.0 |  0.000 % |
6.09/6.17	c |     38728 |    1704     8520 |    3452    3104   51571    16.6 |  0.000 % |
6.09/6.17	c |     58189 |    1704     8520 |    3797    1857   29404    15.8 |  0.000 % |
6.09/6.17	c |     87381 |    1704     8520 |    4177    2584   39777    15.4 |  0.000 % |
6.09/6.17	c |    131171 |    1704     8520 |    4594    2529   39003    15.4 |  0.000 % |
6.09/6.17	c 6.150s elapsed
6.09/6.17	c restarts: 16
6.09/6.17	c decisions: 166989
6.09/6.17	c propagations: 2213276
6.09/6.17	c conflicts: 150551
6.09/6.17	s SATISFIABLE
6.09/6.17	v -6 -47 -27 -58 -10 -7 -5 -11 66 38 42 -55 -61 4 32 52 36 -70 72 -44 -25 16 75 -28 37 79 -1 62 -15 50 30 -40 -68 -26 48 -20 19 65 73 8 -43 31 80 23 45 -24 57 -64 3 -2 -14 -29 -49 51 33 71 -53 54 -9 -35 41 -74 13 12 60 67 -46 69 -34 63 18 -76 -39 -78 21 77 56 -17 22 59 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node35/watcher-426473-1177825538 -o ROOT/results/node35/solver-426473-1177825538 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426473-1177825538/mxc /tmp/evaluation/426473-1177825538/instance-426473-1177825538.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 13328
/proc/meminfo: memFree=1402040/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=932 CPUtime=0
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 117 0 0 0 0 0 0 0 18 0 1 0 230469202 954368 102 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134643709 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 233 102 59 122 0 107 0

[startup+0.07255 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 13328
/proc/meminfo: memFree=1402040/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1204 CPUtime=0.06
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 172 0 0 0 6 0 0 0 18 0 1 0 230469202 1232896 155 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519212 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 301 155 67 122 0 175 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1204

[startup+0.101553 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 13328
/proc/meminfo: memFree=1402040/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1204 CPUtime=0.09
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 176 0 0 0 9 0 0 0 18 0 1 0 230469202 1232896 159 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 301 159 67 122 0 175 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1204

[startup+0.301577 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 13328
/proc/meminfo: memFree=1402040/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1336 CPUtime=0.29
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 203 0 0 0 29 0 0 0 19 0 1 0 230469202 1368064 186 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 334 186 67 122 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1336

[startup+0.701623 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 13328
/proc/meminfo: memFree=1402040/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1336 CPUtime=0.69
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 228 0 0 0 69 0 0 0 23 0 1 0 230469202 1368064 211 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519238 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 334 211 67 122 0 208 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1336

[startup+1.50172 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1401392/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1460 CPUtime=1.49
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 257 0 0 0 149 0 0 0 25 0 1 0 230469202 1495040 240 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 365 240 67 122 0 239 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1460

[startup+3.1019 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1401136/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1584 CPUtime=3.09
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 288 0 0 0 309 0 0 0 25 0 1 0 230469202 1622016 271 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529591 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 396 271 67 122 0 270 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1584

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

[startup+4.70209 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1400896/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1744 CPUtime=4.69
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 313 0 0 0 469 0 0 0 25 0 1 0 230469202 1785856 296 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 436 296 67 122 0 310 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 1744

[startup+5.50519 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1400896/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1744 CPUtime=5.5
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 323 0 0 0 550 0 0 0 25 0 1 0 230469202 1785856 306 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519289 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 436 306 67 122 0 310 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 1744

[startup+5.90123 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1400896/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1864 CPUtime=5.89
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 330 0 0 0 589 0 0 0 25 0 1 0 230469202 1908736 313 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531283 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 466 313 67 122 0 340 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 1864

[startup+6.10126 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 13329
/proc/meminfo: memFree=1400896/2055920 swapFree=4151088/4192956
[pid=13328] ppid=13326 vsize=1864 CPUtime=6.09
/proc/13328/stat : 13328 (mxc) R 13326 13328 13236 0 -1 4194304 331 0 0 0 609 0 0 0 25 0 1 0 230469202 1908736 314 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530114 0 0 4096 0 0 0 0 17 1 0 0
/proc/13328/statm: 466 314 67 122 0 340 0
Current children cumulated CPU time (s) 6.09
Current children cumulated vsize (KiB) 1864

Child status: 10
Real time (s): 6.17425
CPU time (s): 6.15806
CPU user time (s): 6.15506
CPU system time (s): 0.002999
CPU usage (%): 99.7379
Max. virtual memory (cumulated for all children) (KiB): 1864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.15506
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 333
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= 9
involuntary context switches= 128

runsolver used 0.007998 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Sun Apr 29 05:45:38 UTC 2007

IDJOB= 426473
IDBENCH= 19819
IDSOLVER= 174
FILE ID= node35/426473-1177825538

PBS_JOBID= 4718262

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1456895752-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426473-1177825538/mxc /tmp/evaluation/426473-1177825538/instance-426473-1177825538.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-426473-1177825538 -o ROOT/results/node35/solver-426473-1177825538 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426473-1177825538/mxc /tmp/evaluation/426473-1177825538/instance-426473-1177825538.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  fa2304b8263a4aa6972ebd18df695b72

RANDOM SEED= 795559486

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1402512 kB
Buffers:         51448 kB
Cached:         505996 kB
SwapCached:       9948 kB
Active:         308748 kB
Inactive:       273196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1402512 kB
SwapTotal:     4192956 kB
SwapFree:      4151088 kB
Dirty:             640 kB
Writeback:           0 kB
Mapped:          30660 kB
Slab:            56752 kB
Committed_AS:  2642608 kB
PageTables:       1996 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= 66564 MiB

End job on node35 on Sun Apr 29 05:45:44 UTC 2007