Trace number 1833588

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
MiniSAT 09z 2009-03-22UNSAT 15.0427 15.049

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Parsing...
0.00/0.03	c ==============================================================================
0.00/0.03	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.03	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.03	c ==============================================================================
0.00/0.03	c |         0 |   31995    74655 |    9598       0        0     nan |  0.000 % |
0.00/0.38	c |         0 |   13910    56174 |      --       0       --      -- |     --   | -18063/-18428
0.00/0.38	c ==============================================================================
0.00/0.38	c Result  :   #vars: 1871   #clauses: 13910   #literals: 56174
0.00/0.38	c CPU time:   0.368943 s
0.00/0.38	c ==============================================================================
0.00/0.40	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.40	c Number of variables   : 1871         
0.00/0.40	c Number of clauses     : 13910        
0.00/0.41	c Parsing time: 0.01         s
14.97/15.04	c restarts              : 110
14.97/15.04	c conflicts             : 53379          (3658 /sec)
14.97/15.04	c decisions             : 158707         (1.54 % random) (10876 /sec)
14.97/15.04	c propagations          : 7340611        (503065 /sec)
14.97/15.04	c conflict literals     : 5313351        (33.17 % deleted)
14.97/15.04	c Memory used           : 22.09 MB
14.97/15.04	c CPU time              : 14.5918 s
14.97/15.04	UNSATISFIABLE
14.97/15.04	
14.97/15.04	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1833588-1242823728/watcher-1833588-1242823728 -o /tmp/evaluation-result-1833588-1242823728/solver-1833588-1242823728 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1833588-1242823728.cnf -random-seed=550733816 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 3442
/proc/meminfo: memFree=1726400/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 276 0 0 0 0 0 0 0 18 0 1 0 310402532 5484544 235 1992294400 4194304 4889804 548682068800 18446744073709551615 214945202258 0 0 4100 65536 18446744071563648864 0 0 17 0 0 0
/proc/3442/statm: 1339 235 195 169 0 50 0
[pid=3443] ppid=3442 vsize=5356 CPUtime=0
/proc/3443/stat : 3443 (SatELiteGTI) S 3442 3442 3335 0 -1 4194368 51 25 0 0 0 0 0 0 18 0 1 0 310402533 5484544 238 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4096 65538 18446744071563356171 0 0 17 0 0 0
/proc/3443/statm: 1339 238 198 169 0 50 0
[pid=3445] ppid=3443 vsize=5356 CPUtime=0
/proc/3445/stat : 3445 (SatELiteGTI) R 3443 3442 3335 0 -1 4194368 19 0 0 0 0 0 0 0 21 0 1 0 310402533 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945033511 0 0 4096 0 0 0 0 17 1 0 0
/proc/3445/statm: 1339 239 199 169 0 50 0

[startup+0.0765679 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 3442
/proc/meminfo: memFree=1726400/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310402532 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/3442/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102569 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 3442
/proc/meminfo: memFree=1726400/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310402532 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/3442/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.302596 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 3442
/proc/meminfo: memFree=1726400/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 310 250 0 0 0 0 0 0 18 0 1 0 310402532 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/3442/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.701632 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 3442
/proc/meminfo: memFree=1726400/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 5356

[startup+1.50272 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1720752/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=6688 CPUtime=1.08
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 1395 0 0 0 108 0 0 0 25 0 1 0 310402573 6848512 1381 1992294400 134512640 135212243 4294956240 18446744073709551615 134535651 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 1672 1381 76 170 0 1499 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 12044

[startup+3.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1716784/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=11176 CPUtime=2.68
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 2509 0 0 0 267 1 0 0 25 0 1 0 310402573 11444224 2495 1992294400 134512640 135212243 4294956240 18446744073709551615 134526078 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 2794 2495 76 170 0 2621 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 16532

[startup+6.30126 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1709936/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=16648 CPUtime=5.88
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 3858 0 0 0 586 2 0 0 25 0 1 0 310402573 17047552 3844 1992294400 134512640 135212243 4294956240 18446744073709551615 134718742 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 4162 3844 76 170 0 3989 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 22004

[startup+12.702 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1702704/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=22616 CPUtime=12.28
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 5357 0 0 0 1225 3 0 0 25 0 1 0 310402573 23158784 5343 1992294400 134512640 135212243 4294956240 18446744073709551615 134526150 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 5654 5343 76 170 0 5481 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 27972

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

[startup+14.3052 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1702704/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=22616 CPUtime=13.88
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 5357 0 0 0 1385 3 0 0 25 0 1 0 310402573 23158784 5343 1992294400 134512640 135212243 4294956240 18446744073709551615 134526558 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 5654 5343 76 170 0 5481 0
Current children cumulated CPU time (s) 14.27
Current children cumulated vsize (KiB) 27972

[startup+14.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1702704/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=22616 CPUtime=14.28
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 5357 0 0 0 1425 3 0 0 25 0 1 0 310402573 23158784 5343 1992294400 134512640 135212243 4294956240 18446744073709551615 134526248 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 5654 5343 76 170 0 5481 0
Current children cumulated CPU time (s) 14.67
Current children cumulated vsize (KiB) 27972

[startup+14.9012 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1702704/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=22616 CPUtime=14.48
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 5357 0 0 0 1445 3 0 0 25 0 1 0 310402573 23158784 5343 1992294400 134512640 135212243 4294956240 18446744073709551615 134526461 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 5654 5343 76 170 0 5481 0
Current children cumulated CPU time (s) 14.87
Current children cumulated vsize (KiB) 27972

[startup+15.0012 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 3448
/proc/meminfo: memFree=1702704/2055920 swapFree=4131180/4192956
[pid=3442] ppid=3440 vsize=5356 CPUtime=0.39
/proc/3442/stat : 3442 (SatELiteGTI) S 3440 3442 3335 0 -1 4194304 335 1771 0 0 0 0 38 1 15 0 1 0 310402532 5484544 239 1992294400 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3442/statm: 1339 239 197 169 0 50 0
[pid=3448] ppid=3442 vsize=22616 CPUtime=14.58
/proc/3448/stat : 3448 (minisat_static) R 3442 3442 3335 0 -1 4194304 5357 0 0 0 1455 3 0 0 25 0 1 0 310402573 23158784 5343 1992294400 134512640 135212243 4294956240 18446744073709551615 134527557 0 0 4096 3 0 0 0 17 0 0 0
/proc/3448/statm: 5654 5343 76 170 0 5481 0
Current children cumulated CPU time (s) 14.97
Current children cumulated vsize (KiB) 27972

Child status: 20
Real time (s): 15.049
CPU time (s): 15.0427
CPU user time (s): 14.9797
CPU system time (s): 0.06299
CPU usage (%): 99.9582
Max. virtual memory (cumulated for all children) (KiB): 27972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.9797
system time used= 0.06299
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7631
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= 19
involuntary context switches= 42

runsolver used 0.016997 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node85 at 2009-05-20 14:48:49
IDJOB=1833588
IDBENCH=70759
IDSOLVER=672
FILE ID=node85/1833588-1242823728
PBS_JOBID= 9322486
Free space on /tmp= 126508 MiB

SOLVER NAME= MiniSAT 09z 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -random-seed=RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1833588-1242823728/watcher-1833588-1242823728 -o /tmp/evaluation-result-1833588-1242823728/solver-1833588-1242823728 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1833588-1242823728.cnf -random-seed=550733816

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=550733816

node85.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		: 3000.238
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		: 3000.238
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:       1726944 kB
Buffers:         50396 kB
Cached:         175236 kB
SwapCached:      56432 kB
Active:          46824 kB
Inactive:       237316 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1726944 kB
SwapTotal:     4192956 kB
SwapFree:      4131180 kB
Dirty:            2032 kB
Writeback:           0 kB
Mapped:          14040 kB
Slab:            30920 kB
Committed_AS:   959616 kB
PageTables:       1376 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= 126508 MiB
End job on node85 at 2009-05-20 14:49:04