Trace number 367616

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 2007-02-08UNSAT 50.9642 50.989

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-10-15-u.cnf
MD5SUM3b92b02eda280b3d74433fa589c2d772
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark18.5632
Satisfiable
(Un)Satisfiability was proved
Number of variables193016
Number of clauses885873
Sum of the clauses size2034196
Maximum clause length10
Minimum clause length1
Number of clauses of size 116194
Number of clauses of size 2700175
Number of clauses of size 3133124
Number of clauses of size 44040
Number of clauses of size 516160
Number of clauses of size over 516180

Solver Data (download as text)

50.88/50.98	c MXC attempting /tmp/evaluation/367616-1177549579/instance-367616-1177549579.cnf
50.88/50.98	c 46672 assignments made, starting to guess now
50.88/50.98	c ===================================[MXC]=====================================
50.88/50.98	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
50.88/50.98	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
50.88/50.98	c =============================================================================
50.88/50.98	c |         0 |  140112   502436 |   46704       0       0     nan | 24.180 % |
50.88/50.98	c |       101 |  134742   481434 |   51374      77    1911    24.8 | 27.169 % |
50.88/50.98	c |       251 |  129873   460277 |   56511     190    8398    44.2 | 30.553 % |
50.88/50.98	c |       476 |  123614   435528 |   62163     376   20881    55.5 | 34.176 % |
50.88/50.98	c |       814 |  119461   417670 |   68379     667   51171    76.7 | 37.094 % |
50.88/50.98	c |      1320 |  107167   353509 |   75217    1065   62038    58.3 | 49.430 % |
50.88/50.98	c |      2079 |  104549   342338 |   82738    1781  117148    65.8 | 51.256 % |
50.88/50.98	c |      3221 |  102678   335762 |   91012    2909  205137    70.5 | 52.106 % |
50.88/50.98	c |      4929 |  100714   327339 |  100114    4566  336489    73.7 | 53.514 % |
50.88/50.98	c |      7491 |   50040   163479 |  110125    6110  304495    49.8 | 72.304 % |
50.88/50.98	c |     11335 |   43415   141772 |  121138    9042  409957    45.3 | 75.678 % |
50.88/50.98	c 50.960s elapsed
50.88/50.98	c restarts: 10
50.88/50.98	c decisions: 48745
50.88/50.98	c propagations: 65500198
50.88/50.98	c conflicts: 16928
50.88/50.98	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node52/watcher-367616-1177549579 -o ROOT/results/node52/solver-367616-1177549579 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367616-1177549579/mxc /tmp/evaluation/367616-1177549579/instance-367616-1177549579.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: 1.02 0.99 0.91 3/64 19433
/proc/meminfo: memFree=1670412/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=16620 CPUtime=0
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 731 0 0 0 0 0 0 0 18 0 1 0 109803136 17018880 717 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 4155 723 42 122 0 4029 0

[startup+0.0648801 s]
/proc/loadavg: 1.02 0.99 0.91 3/64 19433
/proc/meminfo: memFree=1670412/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=38168 CPUtime=0.06
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 8451 0 0 0 2 4 0 0 18 0 1 0 109803136 39084032 8436 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9542 8436 46 122 0 9416 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 38168

[startup+0.101882 s]
/proc/loadavg: 1.02 0.99 0.91 3/64 19433
/proc/meminfo: memFree=1670412/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39488 CPUtime=0.09
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 8775 0 0 0 5 4 0 0 18 0 1 0 109803136 40435712 8760 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9872 8760 46 122 0 9746 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 39488

[startup+0.301895 s]
/proc/loadavg: 1.02 0.99 0.91 3/64 19433
/proc/meminfo: memFree=1670412/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=46376 CPUtime=0.29
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 10502 0 0 0 24 5 0 0 19 0 1 0 109803136 47489024 10487 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134522424 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 11594 10487 46 122 0 11468 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 46376

[startup+0.701928 s]
/proc/loadavg: 1.02 0.99 0.91 3/64 19433
/proc/meminfo: memFree=1670412/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39112 CPUtime=0.69
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 12569 0 0 0 63 6 0 0 22 0 1 0 109803136 40050688 8632 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9778 8632 59 122 0 9652 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 39112

[startup+1.50197 s]
/proc/loadavg: 1.02 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1635524/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39112 CPUtime=1.49
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 12594 0 0 0 143 6 0 0 25 0 1 0 109803136 40050688 8657 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9778 8657 59 122 0 9652 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39112

[startup+3.10108 s]
/proc/loadavg: 1.02 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1635780/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39112 CPUtime=3.09
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 12617 0 0 0 303 6 0 0 25 0 1 0 109803136 40050688 8680 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9778 8680 59 122 0 9652 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 39112

[startup+6.3013 s]
/proc/loadavg: 1.02 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1635532/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39376 CPUtime=6.29
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 12685 0 0 0 623 6 0 0 25 0 1 0 109803136 40321024 8748 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531106 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9844 8748 59 122 0 9718 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 39376

[startup+12.7017 s]
/proc/loadavg: 1.02 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1635212/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=39640 CPUtime=12.69
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 12798 0 0 0 1263 6 0 0 25 0 1 0 109803136 40591360 8861 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531057 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 9910 8861 59 122 0 9784 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 39640

[startup+25.5016 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1633868/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=40960 CPUtime=25.49
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13150 0 0 0 2542 7 0 0 25 0 1 0 109803136 41943040 9213 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519651 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10240 9213 59 122 0 10114 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 40960

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

[startup+38.3015 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1633228/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=41488 CPUtime=38.28
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13289 0 0 0 3821 7 0 0 25 0 1 0 109803136 42483712 9352 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10372 9352 59 122 0 10246 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 41488

[startup+44.7019 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1632844/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42016 CPUtime=44.68
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13420 0 0 0 4461 7 0 0 25 0 1 0 109803136 43024384 9483 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531215 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10504 9483 59 122 0 10378 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 42016

[startup+47.9021 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1632524/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42148 CPUtime=47.88
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13476 0 0 0 4781 7 0 0 25 0 1 0 109803136 43159552 9539 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10537 9539 59 122 0 10411 0
Current children cumulated CPU time (s) 47.88
Current children cumulated vsize (KiB) 42148

[startup+49.5042 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1632396/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42280 CPUtime=49.48
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13500 0 0 0 4941 7 0 0 25 0 1 0 109803136 43294720 9563 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10570 9563 59 122 0 10444 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 42280

[startup+50.3013 s]
/proc/loadavg: 1.01 0.99 0.91 2/65 19434
/proc/meminfo: memFree=1632396/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42280 CPUtime=50.28
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13506 0 0 0 5021 7 0 0 25 0 1 0 109803136 43294720 9569 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10570 9569 59 122 0 10444 0
Current children cumulated CPU time (s) 50.28
Current children cumulated vsize (KiB) 42280

[startup+50.7013 s]
/proc/loadavg: 1.01 0.99 0.91 3/65 19434
/proc/meminfo: memFree=1632396/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42280 CPUtime=50.68
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13511 0 0 0 5061 7 0 0 25 0 1 0 109803136 43294720 9574 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10570 9574 59 122 0 10444 0
Current children cumulated CPU time (s) 50.68
Current children cumulated vsize (KiB) 42280

[startup+50.9013 s]
/proc/loadavg: 1.01 0.99 0.91 3/65 19434
/proc/meminfo: memFree=1632396/2055920 swapFree=4182996/4192956
[pid=19433] ppid=19431 vsize=42280 CPUtime=50.88
/proc/19433/stat : 19433 (mxc) R 19431 19433 18673 0 -1 4194304 13530 0 0 0 5081 7 0 0 25 0 1 0 109803136 43294720 9593 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/19433/statm: 10570 9593 59 122 0 10444 0
Current children cumulated CPU time (s) 50.88
Current children cumulated vsize (KiB) 42280

Child status: 20
Real time (s): 50.989
CPU time (s): 50.9642
CPU user time (s): 50.8833
CPU system time (s): 0.080987
CPU usage (%): 99.9514
Max. virtual memory (cumulated for all children) (KiB): 50064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.8833
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13534
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= 8
involuntary context switches= 58

runsolver used 0.042993 second user time and 0.103984 second system time

The end

Launcher Data (download as text)

Begin job on node52 on Thu Apr 26 01:06:21 UTC 2007

IDJOB= 367616
IDBENCH= 20344
IDSOLVER= 174
FILE ID= node52/367616-1177549579

PBS_JOBID= 4696613

Free space on /tmp= 66312 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-10-15-u.cnf
COMMAND LINE= /tmp/evaluation/367616-1177549579/mxc /tmp/evaluation/367616-1177549579/instance-367616-1177549579.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-367616-1177549579 -o ROOT/results/node52/solver-367616-1177549579 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367616-1177549579/mxc /tmp/evaluation/367616-1177549579/instance-367616-1177549579.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  3b92b02eda280b3d74433fa589c2d772

RANDOM SEED= 349078862

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1670884 kB
Buffers:         28864 kB
Cached:         279424 kB
SwapCached:       3968 kB
Active:         148156 kB
Inactive:       170508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670884 kB
SwapTotal:     4192956 kB
SwapFree:      4182996 kB
Dirty:           16260 kB
Writeback:           0 kB
Mapped:          16412 kB
Slab:            52256 kB
Committed_AS:  1838848 kB
PageTables:       1488 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= 66312 MiB

End job on node52 on Thu Apr 26 01:07:12 UTC 2007