Trace number 427927

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
minimarch 2007-04-26 (fixed)UNSAT 42.3256 42.3371

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
MD5SUMcc733e9a0d26b1e09913a40f9eba8e3c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.6866
Satisfiable
(Un)Satisfiability was proved
Number of variables3500
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, a modified version of 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:  3500                                                 |
0.00/0.00	|  Number of clauses:    9344                                                 |
0.01/0.02	|  Parsing time:         0.02         s                                       |
0.01/0.05	============================[ Search Statistics ]==============================
0.01/0.05	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.05	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.05	===============================================================================
0.01/0.05	|         0 |    2481     7871    23626 |     2623        0    nan |  0.000 % |
0.01/0.06	|       100 |    2480     7871    23626 |     2886       99     23 |  0.029 % |
0.01/0.08	|       250 |    2480     7871    23626 |     3174      249     23 |  0.029 % |
0.09/0.11	|       475 |    2480     7867    23617 |     3492      474     23 |  0.029 % |
0.09/0.14	|       812 |    2480     7867    23617 |     3841      811     22 |  0.029 % |
0.19/0.21	|      1318 |    2480     7867    23617 |     4225     1317     22 |  0.029 % |
0.29/0.30	|      2080 |    2480     7867    23617 |     4647     2079     23 |  0.029 % |
0.39/0.45	|      3219 |    2480     7867    23617 |     5112     3218     23 |  0.029 % |
0.69/0.72	|      4927 |    2480     7867    23617 |     5624     4926     24 |  0.029 % |
1.10/1.12	|      7489 |    2480     7867    23617 |     6186     4579     26 |  0.029 % |
1.69/1.77	|     11333 |    2480     7867    23617 |     6805     5252     26 |  0.029 % |
2.69/2.73	|     17100 |    2480     7867    23617 |     7485     4047     21 |  0.029 % |
4.19/4.24	|     25751 |    2480     7867    23617 |     8234     5035     20 |  0.029 % |
6.49/6.58	|     38725 |    2480     7867    23617 |     9057     5444     22 |  0.029 % |
10.19/10.24	|     58188 |    2480     7867    23617 |     9963     6385     27 |  0.029 % |
16.19/16.23	|     87381 |    2470     7820    23480 |    10959     9040     22 |  0.314 % |
24.98/25.07	|    131171 |    2450     7709    23159 |    12055     8037     27 |  0.886 % |
39.58/39.65	|    196855 |    2417     7527    22606 |    13261    11982     21 |  1.829 % |
42.28/42.33	===============================================================================
42.28/42.33	lookaheads            : 10686
42.28/42.33	variable balance      : 0.00
42.28/42.33	restarts              : 18
42.28/42.33	conflicts             : 208902         (4937 /sec)
42.28/42.33	decisions             : 273569         (1.71 % random) (6465 /sec)
42.28/42.33	decision = positive   : 138537
42.28/42.33	decision = negative   : 135032
42.28/42.33	propagations          : 60492971       (1429602 /sec)
42.28/42.33	conflict literals     : 5210892        (39.21 % deleted)
42.28/42.33	Memory used           : 5.12 MB
42.28/42.33	CPU time              : 42.3146 s
42.28/42.33	
42.28/42.33	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/node51/watcher-427927-1177689526 -o ROOT/results/node51/solver-427927-1177689526 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/427927-1177689526/minimarch_fixed /tmp/evaluation/427927-1177689526/instance-427927-1177689526.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): 2400 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: 0.88 0.95 0.98 3/64 19797
/proc/meminfo: memFree=1702640/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=2296 CPUtime=0
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 248 0 0 0 0 0 0 0 18 0 1 0 123797695 2351104 233 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134533436 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 574 233 51 132 0 439 0

[startup+0.0161669 s]
/proc/loadavg: 0.88 0.95 0.98 3/64 19797
/proc/meminfo: memFree=1702640/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=2728 CPUtime=0.01
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 355 0 0 0 1 0 0 0 18 0 1 0 123797695 2793472 340 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523641 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 682 340 51 132 0 547 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2728

[startup+0.101175 s]
/proc/loadavg: 0.88 0.95 0.98 3/64 19797
/proc/meminfo: memFree=1702640/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3104 CPUtime=0.09
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 484 0 0 0 9 0 0 0 18 0 1 0 123797695 3178496 469 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134691319 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 776 469 67 132 0 641 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3104

[startup+0.301193 s]
/proc/loadavg: 0.88 0.95 0.98 3/64 19797
/proc/meminfo: memFree=1702640/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3104 CPUtime=0.29
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 484 0 0 0 29 0 0 0 19 0 1 0 123797695 3178496 469 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551277 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 776 469 67 132 0 641 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3104

[startup+0.701228 s]
/proc/loadavg: 0.88 0.95 0.98 3/64 19797
/proc/meminfo: memFree=1702640/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3236 CPUtime=0.69
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 510 0 0 0 69 0 0 0 22 0 1 0 123797695 3313664 495 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551391 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 809 495 67 132 0 674 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3236

[startup+1.5013 s]
/proc/loadavg: 0.88 0.95 0.98 2/65 19798
/proc/meminfo: memFree=1700712/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3500 CPUtime=1.49
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 589 0 0 0 149 0 0 0 25 0 1 0 123797695 3584000 574 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551287 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 875 574 67 132 0 740 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3500

[startup+3.10144 s]
/proc/loadavg: 0.88 0.95 0.98 2/65 19798
/proc/meminfo: memFree=1700392/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3632 CPUtime=3.09
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 614 0 0 0 309 0 0 0 25 0 1 0 123797695 3719168 599 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 908 599 67 132 0 773 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3632

[startup+6.30173 s]
/proc/loadavg: 0.89 0.95 0.98 2/65 19798
/proc/meminfo: memFree=1700008/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=3912 CPUtime=6.29
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 683 0 0 0 629 0 0 0 25 0 1 0 123797695 4005888 668 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557563 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 978 668 67 132 0 843 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3912

[startup+12.7013 s]
/proc/loadavg: 0.90 0.95 0.98 2/65 19798
/proc/meminfo: memFree=1699304/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=4572 CPUtime=12.69
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 837 0 0 0 1269 0 0 0 25 0 1 0 123797695 4681728 822 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551719 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1143 822 67 132 0 1008 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4572

[startup+25.5015 s]
/proc/loadavg: 0.92 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698792/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5100 CPUtime=25.48
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 975 0 0 0 2548 0 0 0 25 0 1 0 123797695 5222400 960 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551386 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1275 960 67 132 0 1140 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 5100

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

[startup+31.905 s]
/proc/loadavg: 0.92 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698728/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=31.88
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 993 0 0 0 3188 0 0 0 25 0 1 0 123797695 5369856 978 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 978 67 132 0 1176 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 5244

[startup+38.3016 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698664/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=38.28
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 1001 0 0 0 3828 0 0 0 25 0 1 0 123797695 5369856 986 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551287 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 986 67 132 0 1176 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 5244

[startup+39.9018 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698664/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=39.88
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 1008 0 0 0 3988 0 0 0 25 0 1 0 123797695 5369856 993 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 993 67 132 0 1176 0
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (KiB) 5244

[startup+41.5029 s]
/proc/loadavg: 0.94 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698664/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=41.48
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 1011 0 0 0 4148 0 0 0 25 0 1 0 123797695 5369856 996 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551441 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 996 67 132 0 1176 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 5244

[startup+41.9019 s]
/proc/loadavg: 0.94 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698664/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=41.88
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 1014 0 0 0 4188 0 0 0 25 0 1 0 123797695 5369856 999 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551772 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 999 67 132 0 1176 0
Current children cumulated CPU time (s) 41.88
Current children cumulated vsize (KiB) 5244

[startup+42.302 s]
/proc/loadavg: 0.94 0.96 0.98 2/65 19798
/proc/meminfo: memFree=1698664/2055920 swapFree=4183292/4192956
[pid=19797] ppid=19795 vsize=5244 CPUtime=42.28
/proc/19797/stat : 19797 (minimarch_fixed) R 19795 19797 18915 0 -1 4194304 1015 0 0 0 4228 0 0 0 25 0 1 0 123797695 5369856 1000 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134552686 0 0 4096 3 0 0 0 17 1 0 0
/proc/19797/statm: 1311 1000 67 132 0 1176 0
Current children cumulated CPU time (s) 42.28
Current children cumulated vsize (KiB) 5244

Child status: 20
Real time (s): 42.3371
CPU time (s): 42.3256
CPU user time (s): 42.3146
CPU system time (s): 0.010998
CPU usage (%): 99.9727
Max. virtual memory (cumulated for all children) (KiB): 5244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 42.3146
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1022
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= 7
involuntary context switches= 57

runsolver used 0.034994 second user time and 0.087986 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Fri Apr 27 15:58:46 UTC 2007

IDJOB= 427927
IDBENCH= 20220
IDSOLVER= 198
FILE ID= node51/427927-1177689526

PBS_JOBID= 4698635

Free space on /tmp= 66525 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/427927-1177689526/minimarch_fixed /tmp/evaluation/427927-1177689526/instance-427927-1177689526.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-427927-1177689526 -o ROOT/results/node51/solver-427927-1177689526 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/427927-1177689526/minimarch_fixed /tmp/evaluation/427927-1177689526/instance-427927-1177689526.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  cc733e9a0d26b1e09913a40f9eba8e3c

RANDOM SEED= 152583710

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1703048 kB
Buffers:         34012 kB
Cached:         175492 kB
SwapCached:       3676 kB
Active:         179272 kB
Inactive:       118044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1703048 kB
SwapTotal:     4192956 kB
SwapFree:      4183292 kB
Dirty:            3036 kB
Writeback:           0 kB
Mapped:          15864 kB
Slab:            41604 kB
Committed_AS:  3828500 kB
PageTables:       1408 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= 66525 MiB

End job on node51 on Fri Apr 27 15:59:28 UTC 2007