Trace number 1797958

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
minisat2-core 070721UNSAT 63.2764 63.3006

General information on the benchmark

NameAPPLICATIONS/bitverif/
smulo/smulo016.cnf
MD5SUM576249eded8a3c95c0b3aa8dcd51992e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.1178
Satisfiable
(Un)Satisfiability was proved
Number of variables2945
Number of clauses8738
Sum of the clauses size20386
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 25824
Number of clauses of size 32912
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	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  2945                                                 |
0.00/0.00	|  Number of clauses:    8738                                                 |
0.00/0.00	|  Parsing time:         0.00         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |    2943     8734    20380 |     2911        0    nan |  0.000 % |
0.00/0.01	|       100 |    2943     8734    20380 |     3202      100     18 |  0.069 % |
0.00/0.03	|       253 |    2943     8734    20380 |     3522      253     25 |  0.070 % |
0.00/0.05	|       478 |    2943     8734    20380 |     3874      478     27 |  0.069 % |
0.00/0.09	|       817 |    2943     8734    20380 |     4262      817     33 |  0.068 % |
0.10/0.15	|      1323 |    2943     8734    20380 |     4688     1323     38 |  0.069 % |
0.20/0.26	|      2082 |    2943     8734    20380 |     5157     2082     38 |  0.069 % |
0.30/0.38	|      3224 |    2943     8734    20380 |     5673     3224     40 |  0.070 % |
0.50/0.58	|      4932 |    2943     8734    20380 |     6240     4932     35 |  0.068 % |
1.10/1.11	|      7494 |    2943     8734    20380 |     6864     4058     38 |  0.068 % |
1.59/1.63	|     11338 |    2941     8727    20366 |     7551     4189     29 |  0.141 % |
2.59/2.60	|     17104 |    2941     8727    20366 |     8306     5708     32 |  0.137 % |
4.30/4.33	|     25753 |    2926     8641    20180 |     9137     9115     32 |  0.647 % |
6.39/6.47	|     38727 |    2926     8641    20180 |    10050     7373     24 |  0.645 % |
9.89/9.93	|     58189 |    2926     8641    20180 |    11055    10970     26 |  0.646 % |
15.19/15.26	|     87381 |    2926     8641    20180 |    12161    10554     23 |  0.646 % |
23.48/23.51	|    131170 |    2923     8620    20136 |    13377     9938     32 |  0.749 % |
36.77/36.89	|    196854 |    2922     8615    20126 |    14715    13422     21 |  0.781 % |
56.87/56.93	|    295381 |    2918     8589    20072 |    16186    12216     20 |  0.918 % |
63.17/63.29	===============================================================================
63.17/63.29	restarts              : 19
63.17/63.29	conflicts             : 327420         (5175 /sec)
63.17/63.29	decisions             : 433099         (1.16 % random) (6845 /sec)
63.17/63.29	propagations          : 116393121      (1839644 /sec)
63.17/63.29	conflict literals     : 9541175        (50.63 % deleted)
63.17/63.29	Memory used           : 5.95 MB
63.17/63.29	CPU time              : 63.2694 s
63.17/63.29	
63.17/63.29	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-1797958-1242079641/watcher-1797958-1242079641 -o /tmp/evaluation-result-1797958-1242079641/solver-1797958-1242079641 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797958-1242079641.cnf 

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: 0.99 0.98 0.99 3/64 17091
/proc/meminfo: memFree=1968576/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=2312 CPUtime=0
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 240 0 0 0 0 0 0 0 18 0 1 0 235991501 2367488 225 1992294400 134512640 135213614 4294956256 18446744073709551615 134515682 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 578 225 58 171 0 404 0

[startup+0.00844203 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17091
/proc/meminfo: memFree=1968576/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=2504 CPUtime=0
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 235991501 2564096 262 1992294400 134512640 135213614 4294956256 18446744073709551615 134529821 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 626 262 75 171 0 452 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2504

[startup+0.101449 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17091
/proc/meminfo: memFree=1968576/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=2636 CPUtime=0.1
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 317 0 0 0 10 0 0 0 18 0 1 0 235991501 2699264 302 1992294400 134512640 135213614 4294956256 18446744073709551615 134526764 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 659 302 77 171 0 485 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2636

[startup+0.301466 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17091
/proc/meminfo: memFree=1968576/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=2900 CPUtime=0.3
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 403 0 0 0 30 0 0 0 19 0 1 0 235991501 2969600 388 1992294400 134512640 135213614 4294956256 18446744073709551615 134526802 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 725 388 77 171 0 551 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2900

[startup+0.701502 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17091
/proc/meminfo: memFree=1968576/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=3560 CPUtime=0.69
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 547 0 0 0 69 0 0 0 23 0 1 0 235991501 3645440 532 1992294400 134512640 135213614 4294956256 18446744073709551615 134536168 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 890 532 77 171 0 716 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3560

[startup+1.50157 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 17092
/proc/meminfo: memFree=1966392/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=3824 CPUtime=1.49
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 636 0 0 0 149 0 0 0 25 0 1 0 235991501 3915776 621 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 956 621 77 171 0 782 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3824

[startup+3.10172 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 17092
/proc/meminfo: memFree=1966200/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=4092 CPUtime=3.09
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 686 0 0 0 309 0 0 0 25 0 1 0 235991501 4190208 671 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1023 671 77 171 0 849 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4092

[startup+6.30201 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 17092
/proc/meminfo: memFree=1965688/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=4356 CPUtime=6.29
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 759 0 0 0 629 0 0 0 25 0 1 0 235991501 4460544 744 1992294400 134512640 135213614 4294956256 18446744073709551615 134526959 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1089 744 77 171 0 915 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4356

[startup+12.7016 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 17092
/proc/meminfo: memFree=1965368/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=4760 CPUtime=12.69
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 856 0 0 0 1269 0 0 0 25 0 1 0 235991501 4874240 841 1992294400 134512640 135213614 4294956256 18446744073709551615 134526878 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1190 841 77 171 0 1016 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4760

[startup+25.5017 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 17092
/proc/meminfo: memFree=1964472/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=5684 CPUtime=25.48
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1103 0 0 0 2548 0 0 0 25 0 1 0 235991501 5820416 1088 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1421 1088 77 171 0 1247 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 5684

[startup+51.1011 s]
/proc/loadavg: 1.05 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=5956 CPUtime=51.07
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1155 0 0 0 5107 0 0 0 25 0 1 0 235991501 6098944 1140 1992294400 134512640 135213614 4294956256 18446744073709551615 134537544 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1489 1140 77 171 0 1315 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 5956

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

[startup+57.5016 s]
/proc/loadavg: 1.05 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=5956 CPUtime=57.47
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1164 0 0 0 5747 0 0 0 25 0 1 0 235991501 6098944 1149 1992294400 134512640 135213614 4294956256 18446744073709551615 134526715 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1489 1149 77 171 0 1315 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 5956

[startup+60.7019 s]
/proc/loadavg: 1.05 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=6088 CPUtime=60.67
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1175 0 0 0 6067 0 0 0 25 0 1 0 235991501 6234112 1160 1992294400 134512640 135213614 4294956256 18446744073709551615 134526882 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1522 1160 77 171 0 1348 0
Current children cumulated CPU time (s) 60.67
Current children cumulated vsize (KiB) 6088

[startup+62.3011 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=6088 CPUtime=62.27
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1175 0 0 0 6227 0 0 0 25 0 1 0 235991501 6234112 1160 1992294400 134512640 135213614 4294956256 18446744073709551615 134526715 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1522 1160 77 171 0 1348 0
Current children cumulated CPU time (s) 62.27
Current children cumulated vsize (KiB) 6088

[startup+62.7051 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=6088 CPUtime=62.67
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1175 0 0 0 6267 0 0 0 25 0 1 0 235991501 6234112 1160 1992294400 134512640 135213614 4294956256 18446744073709551615 134530478 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1522 1160 77 171 0 1348 0
Current children cumulated CPU time (s) 62.67
Current children cumulated vsize (KiB) 6088

[startup+63.1011 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=6088 CPUtime=63.07
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1175 0 0 0 6307 0 0 0 25 0 1 0 235991501 6234112 1160 1992294400 134512640 135213614 4294956256 18446744073709551615 134527176 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1522 1160 77 171 0 1348 0
Current children cumulated CPU time (s) 63.07
Current children cumulated vsize (KiB) 6088

[startup+63.2012 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 17092
/proc/meminfo: memFree=1964216/2055920 swapFree=4178852/4192956
[pid=17091] ppid=17089 vsize=6088 CPUtime=63.17
/proc/17091/stat : 17091 (minisat_static) R 17089 17091 16688 0 -1 4194304 1175 0 0 0 6317 0 0 0 25 0 1 0 235991501 6234112 1160 1992294400 134512640 135213614 4294956256 18446744073709551615 134526802 0 0 4096 3 0 0 0 17 0 0 0
/proc/17091/statm: 1522 1160 77 171 0 1348 0
Current children cumulated CPU time (s) 63.17
Current children cumulated vsize (KiB) 6088

Child status: 20
Real time (s): 63.3006
CPU time (s): 63.2764
CPU user time (s): 63.2694
CPU system time (s): 0.006998
CPU usage (%): 99.9618
Max. virtual memory (cumulated for all children) (KiB): 6088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 63.2694
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1187
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= 2
involuntary context switches= 191

runsolver used 0.054991 second user time and 0.183972 second system time

The end

Launcher Data 

Begin job on node55 at 2009-05-12 00:07:21
IDJOB=1797958
IDBENCH=70788
IDSOLVER=651
FILE ID=node55/1797958-1242079641
PBS_JOBID= 9277656
Free space on /tmp= 66264 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/smulo/smulo016.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797958-1242079641/watcher-1797958-1242079641 -o /tmp/evaluation-result-1797958-1242079641/solver-1797958-1242079641 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797958-1242079641.cnf

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

MD5SUM BENCH= 576249eded8a3c95c0b3aa8dcd51992e
RANDOM SEED=1276115616

node55.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		: 3000.240
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		: 3000.240
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:       1969824 kB
Buffers:         14756 kB
Cached:          19160 kB
SwapCached:       7904 kB
Active:          23700 kB
Inactive:        20136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1969824 kB
SwapTotal:     4192956 kB
SwapFree:      4178852 kB
Dirty:             900 kB
Writeback:           0 kB
Mapped:          15628 kB
Slab:            28328 kB
Committed_AS:   710524 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= 66260 MiB
End job on node55 at 2009-05-12 00:08:25