Trace number 367617

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 171.713 171.773

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-10-11-u.cnf
MD5SUM72bf29e65f8337564b4a44baea32f1cb
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark74.9146
Satisfiable
(Un)Satisfiability was proved
Number of variables192890
Number of clauses855991
Sum of the clauses size1944492
Maximum clause length10
Minimum clause length1
Number of clauses of size 116350
Number of clauses of size 2701001
Number of clauses of size 3101900
Number of clauses of size 44080
Number of clauses of size 516320
Number of clauses of size over 516340

Solver Data (download as text)

171.65/171.76	c MXC attempting /tmp/evaluation/367617-1177549595/instance-367617-1177549595.cnf
171.65/171.76	c 48756 assignments made, starting to guess now
171.65/171.76	c ===================================[MXC]=====================================
171.65/171.76	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
171.65/171.76	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
171.65/171.76	c =============================================================================
171.65/171.76	c |         0 |  108448   406254 |   36149       0       0     nan | 25.277 % |
171.65/171.76	c |       100 |  104483   389639 |   39763      87    2798    32.2 | 28.113 % |
171.65/171.76	c |       250 |   99662   369445 |   43740     223    8797    39.4 | 31.583 % |
171.65/171.76	c |       483 |   98420   363786 |   48114     447   34808    77.9 | 32.642 % |
171.65/171.76	c |       821 |   98141   362790 |   52925     765   78849   103.1 | 32.796 % |
171.65/171.76	c |      1328 |   93473   341429 |   58218    1226  103307    84.3 | 36.759 % |
171.65/171.76	c |      2088 |   90404   327575 |   64040    1480  112398    75.9 | 39.408 % |
171.65/171.76	c |      3228 |   79497   273828 |   70444    2261  207978    92.0 | 49.880 % |
171.65/171.76	c |      4936 |   70476   241555 |   77488    3915  456300   116.6 | 52.991 % |
171.65/171.76	c |      7499 |   70250   240783 |   85237    6469 1499688   231.8 | 53.115 % |
171.65/171.76	c |     11344 |   68386   232832 |   93761   10262 1914860   186.6 | 54.593 % |
171.65/171.76	c |     17110 |   61947   212926 |  103137   15918 2794437   175.6 | 55.353 % |
171.65/171.76	c |     25759 |   61274   210520 |  113451   24520 3808686   155.3 | 55.779 % |
171.65/171.76	c 171.720s elapsed
171.65/171.76	c restarts: 12
171.65/171.76	c decisions: 79803
171.65/171.76	c propagations: 184532381
171.65/171.76	c conflicts: 31672
171.65/171.76	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/node55/watcher-367617-1177549595 -o ROOT/results/node55/solver-367617-1177549595 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367617-1177549595/mxc /tmp/evaluation/367617-1177549595/instance-367617-1177549595.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: 0.94 0.97 0.91 3/64 15323
/proc/meminfo: memFree=1487804/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=15904 CPUtime=0
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 722 0 0 0 0 0 0 0 18 0 1 0 202869701 16285696 707 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 3976 713 42 122 0 3850 0

[startup+0.0670559 s]
/proc/loadavg: 0.94 0.97 0.91 3/64 15323
/proc/meminfo: memFree=1487804/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=37580 CPUtime=0.05
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 8301 0 0 0 2 3 0 0 18 0 1 0 202869701 38481920 8286 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9395 8286 46 122 0 9269 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 37580

[startup+0.101059 s]
/proc/loadavg: 0.94 0.97 0.91 3/64 15323
/proc/meminfo: memFree=1487804/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=38768 CPUtime=0.08
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 8609 0 0 0 5 3 0 0 18 0 1 0 202869701 39698432 8594 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9692 8595 46 122 0 9566 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 38768

[startup+0.301077 s]
/proc/loadavg: 0.94 0.97 0.91 3/64 15323
/proc/meminfo: memFree=1487804/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=45760 CPUtime=0.28
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 10343 0 0 0 24 4 0 0 19 0 1 0 202869701 46858240 10328 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134522240 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 11440 10328 46 122 0 11314 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 45760

[startup+0.701114 s]
/proc/loadavg: 0.94 0.97 0.91 3/64 15323
/proc/meminfo: memFree=1487804/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=37892 CPUtime=0.69
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12088 0 0 0 64 5 0 0 22 0 1 0 202869701 38801408 8330 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9473 8330 59 122 0 9347 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 37892

[startup+1.50119 s]
/proc/loadavg: 0.94 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1454580/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=37892 CPUtime=1.49
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12100 0 0 0 144 5 0 0 25 0 1 0 202869701 38801408 8342 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9473 8342 59 122 0 9347 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37892

[startup+3.10134 s]
/proc/loadavg: 0.94 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1454388/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=37892 CPUtime=3.09
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12110 0 0 0 304 5 0 0 25 0 1 0 202869701 38801408 8352 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9473 8352 59 122 0 9347 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 37892

[startup+6.30164 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1454196/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=38156 CPUtime=6.29
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12156 0 0 0 624 5 0 0 25 0 1 0 202869701 39071744 8398 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519564 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9539 8398 59 122 0 9413 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 38156

[startup+12.7012 s]
/proc/loadavg: 0.95 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1453748/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=38684 CPUtime=12.68
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12308 0 0 0 1263 5 0 0 25 0 1 0 202869701 39612416 8550 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531117 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 9671 8550 59 122 0 9545 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 38684

[startup+25.5015 s]
/proc/loadavg: 0.96 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1452020/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=40400 CPUtime=25.49
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 12757 0 0 0 2542 7 0 0 25 0 1 0 202869701 41369600 8999 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531201 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 10100 8999 59 122 0 9974 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 40400

[startup+51.1019 s]
/proc/loadavg: 0.97 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1446004/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=46344 CPUtime=51.08
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 14248 0 0 0 5100 8 0 0 25 0 1 0 202869701 47456256 10490 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531171 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 11586 10490 59 122 0 11460 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 46344

[startup+102.306 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1439284/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=52944 CPUtime=102.27
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 15919 0 0 0 10217 10 0 0 25 0 1 0 202869701 54214656 12161 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519251 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 13236 12161 59 122 0 13110 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 52944

[startup+162.302 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433844/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58364 CPUtime=162.25
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17275 0 0 0 16213 12 0 0 25 0 1 0 202869701 59764736 13517 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519619 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14591 13517 59 122 0 14465 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 58364

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

[startup+166.302 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433588/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58628 CPUtime=166.25
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17329 0 0 0 16613 12 0 0 25 0 1 0 202869701 60035072 13571 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14657 13571 59 122 0 14531 0
Current children cumulated CPU time (s) 166.25
Current children cumulated vsize (KiB) 58628

[startup+169.501 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433396/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58760 CPUtime=169.45
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17376 0 0 0 16933 12 0 0 25 0 1 0 202869701 60170240 13618 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519194 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14690 13618 59 122 0 14564 0
Current children cumulated CPU time (s) 169.45
Current children cumulated vsize (KiB) 58760

[startup+171.101 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433332/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58892 CPUtime=171.05
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17395 0 0 0 17093 12 0 0 25 0 1 0 202869701 60305408 13637 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14723 13637 59 122 0 14597 0
Current children cumulated CPU time (s) 171.05
Current children cumulated vsize (KiB) 58892

[startup+171.501 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433332/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58892 CPUtime=171.45
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17397 0 0 0 17133 12 0 0 25 0 1 0 202869701 60305408 13639 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14723 13639 59 122 0 14597 0
Current children cumulated CPU time (s) 171.45
Current children cumulated vsize (KiB) 58892

[startup+171.701 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15324
/proc/meminfo: memFree=1433332/2055920 swapFree=4184544/4192956
[pid=15323] ppid=15321 vsize=58892 CPUtime=171.65
/proc/15323/stat : 15323 (mxc) R 15321 15323 14633 0 -1 4194304 17397 0 0 0 17153 12 0 0 25 0 1 0 202869701 60305408 13639 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519619 0 0 4096 0 0 0 0 17 1 0 0
/proc/15323/statm: 14723 13639 59 122 0 14597 0
Current children cumulated CPU time (s) 171.65
Current children cumulated vsize (KiB) 58892

Child status: 20
Real time (s): 171.773
CPU time (s): 171.713
CPU user time (s): 171.581
CPU system time (s): 0.131979
CPU usage (%): 99.965
Max. virtual memory (cumulated for all children) (KiB): 58892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 171.581
system time used= 0.131979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17404
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= 207

runsolver used 0.140978 second user time and 0.337948 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Thu Apr 26 01:06:37 UTC 2007

IDJOB= 367617
IDBENCH= 20345
IDSOLVER= 174
FILE ID= node55/367617-1177549595

PBS_JOBID= 4696628

Free space on /tmp= 66358 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/total-10-11-u.cnf
COMMAND LINE= /tmp/evaluation/367617-1177549595/mxc /tmp/evaluation/367617-1177549595/instance-367617-1177549595.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-367617-1177549595 -o ROOT/results/node55/solver-367617-1177549595 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367617-1177549595/mxc /tmp/evaluation/367617-1177549595/instance-367617-1177549595.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  72bf29e65f8337564b4a44baea32f1cb

RANDOM SEED= 193885487

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1488212 kB
Buffers:         47668 kB
Cached:         443932 kB
SwapCached:       2556 kB
Active:         254240 kB
Inactive:       247544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1488212 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:           15716 kB
Writeback:           0 kB
Mapped:          16600 kB
Slab:            51968 kB
Committed_AS:  1328896 kB
PageTables:       1384 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= 66358 MiB

End job on node55 on Thu Apr 26 01:09:29 UTC 2007