Trace number 1797827

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 4.70229 4.70407

General information on the benchmark

Namecmu-bmc-barrel6.cnf
MD5SUMcc87f90bf08e13838e59f0f2639db121
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.68759
Satisfiable
(Un)Satisfiability was proved
Number of variables2306
Number of clauses8931
Sum of the clauses size24664
Maximum clause length217
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22629
Number of clauses of size 36048
Number of clauses of size 4252
Number of clauses of size 50
Number of clauses of size over 52

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:  2306                                                 |
0.00/0.00	|  Number of clauses:    8931                                                 |
0.00/0.00	|  Parsing time:         0.01         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 |    2306     8931    24664 |     2977        0    nan |  0.000 % |
0.00/0.01	|       101 |    2306     8931    24664 |     3274      101     47 |  0.000 % |
0.03/0.04	|       252 |    2302     8919    24632 |     3602      244     82 |  0.173 % |
0.03/0.08	|       479 |    2291     8889    24552 |     3962      447     88 |  0.651 % |
0.10/0.15	|       817 |    2287     8874    24512 |     4358      775     76 |  0.868 % |
0.20/0.25	|      1324 |    2284     8865    24488 |     4794     1274     72 |  1.085 % |
0.30/0.39	|      2084 |    2275     8838    24416 |     5273     2015     77 |  1.345 % |
0.59/0.63	|      3223 |    2265     8808    24338 |     5801     3133     74 |  1.822 % |
1.00/1.00	|      4931 |    2258     8787    24284 |     6381     4828     70 |  2.082 % |
1.49/1.59	|      7494 |    2245     8756    24206 |     7019     4024     54 |  3.123 % |
2.39/2.43	|     11340 |    2207     8649    23932 |     7721     4177     57 |  5.074 % |
3.49/3.51	|     17106 |    2180     8555    23688 |     8493     5885     38 |  5.551 % |
4.69/4.70	===============================================================================
4.69/4.70	restarts              : 12
4.69/4.70	conflicts             : 23902          (5090 /sec)
4.69/4.70	decisions             : 101246         (1.17 % random) (21559 /sec)
4.69/4.70	propagations          : 10162203       (2163881 /sec)
4.69/4.70	conflict literals     : 1260615        (47.28 % deleted)
4.69/4.70	Memory used           : 4.52 MB
4.69/4.70	CPU time              : 4.69629 s
4.69/4.70	
4.69/4.70	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-1797827-1242077305/watcher-1797827-1242077305 -o /tmp/evaluation-result-1797827-1242077305/solver-1797827-1242077305 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797827-1242077305.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 2/64 3182
/proc/meminfo: memFree=905800/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=2164 CPUtime=0
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 212 0 0 0 0 0 0 0 18 0 1 0 235757403 2215936 197 1992294400 134512640 135213614 4294956256 18446744073709551615 134736207 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 541 198 58 171 0 367 0

[startup+0.035913 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 3182
/proc/meminfo: memFree=905800/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=2352 CPUtime=0.03
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 281 0 0 0 3 0 0 0 18 0 1 0 235757403 2408448 266 1992294400 134512640 135213614 4294956256 18446744073709551615 134529801 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 588 266 77 171 0 414 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2352

[startup+0.102921 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 3182
/proc/meminfo: memFree=905800/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=2616 CPUtime=0.1
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 321 0 0 0 10 0 0 0 18 0 1 0 235757403 2678784 306 1992294400 134512640 135213614 4294956256 18446744073709551615 134526715 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 654 306 78 171 0 480 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2616

[startup+0.302942 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 3182
/proc/meminfo: memFree=905800/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=2880 CPUtime=0.3
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 399 0 0 0 30 0 0 0 19 0 1 0 235757403 2949120 384 1992294400 134512640 135213614 4294956256 18446744073709551615 134536681 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 720 384 78 171 0 546 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2880

[startup+0.701986 s]
/proc/loadavg: 0.99 0.98 0.99 2/64 3182
/proc/meminfo: memFree=905800/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=3540 CPUtime=0.69
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 558 0 0 0 69 0 0 0 23 0 1 0 235757403 3624960 543 1992294400 134512640 135213614 4294956256 18446744073709551615 134526985 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 885 543 78 171 0 711 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3540

[startup+1.50107 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 3183
/proc/meminfo: memFree=903488/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=4344 CPUtime=1.49
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 775 0 0 0 149 0 0 0 25 0 1 0 235757403 4448256 760 1992294400 134512640 135213614 4294956256 18446744073709551615 134536168 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 1086 760 78 171 0 912 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4344

[startup+3.10125 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 3183
/proc/meminfo: memFree=902848/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=4476 CPUtime=3.09
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 801 0 0 0 309 0 0 0 25 0 1 0 235757403 4583424 786 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 1119 786 78 171 0 945 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4476

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

[startup+3.90133 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 3183
/proc/meminfo: memFree=902720/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=4476 CPUtime=3.89
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 807 0 0 0 389 0 0 0 25 0 1 0 235757403 4583424 792 1992294400 134512640 135213614 4294956256 18446744073709551615 134526939 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 1119 792 78 171 0 945 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 4476

[startup+4.30147 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 3183
/proc/meminfo: memFree=902720/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=4624 CPUtime=4.29
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 817 0 0 0 429 0 0 0 25 0 1 0 235757403 4734976 802 1992294400 134512640 135213614 4294956256 18446744073709551615 134536526 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 1156 802 78 171 0 982 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 4624

[startup+4.70142 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 3183
/proc/meminfo: memFree=902720/2055920 swapFree=4179680/4192956
[pid=3182] ppid=3180 vsize=4624 CPUtime=4.69
/proc/3182/stat : 3182 (minisat_static) R 3180 3182 2865 0 -1 4194304 817 0 0 0 469 0 0 0 25 0 1 0 235757403 4734976 802 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/3182/statm: 1156 802 78 171 0 982 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 4624

Child status: 20
Real time (s): 4.70407
CPU time (s): 4.70229
CPU user time (s): 4.69629
CPU system time (s): 0.005999
CPU usage (%): 99.9621
Max. virtual memory (cumulated for all children) (KiB): 4624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.69629
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 829
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= 20

runsolver used 0.006998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node64 at 2009-05-11 23:28:25
IDJOB=1797827
IDBENCH=69564
IDSOLVER=651
FILE ID=node64/1797827-1242077305
PBS_JOBID= 9277639
Free space on /tmp= 66372 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-barrel6.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797827-1242077305/watcher-1797827-1242077305 -o /tmp/evaluation-result-1797827-1242077305/solver-1797827-1242077305 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797827-1242077305.cnf

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

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=952852012

node64.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		: 3000.218
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		: 3000.218
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:        906216 kB
Buffers:         61928 kB
Cached:         998816 kB
SwapCached:       6516 kB
Active:          45280 kB
Inactive:      1024752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        906216 kB
SwapTotal:     4192956 kB
SwapFree:      4179680 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          14956 kB
Slab:            65392 kB
Committed_AS:   665672 kB
PageTables:       1392 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66372 MiB
End job on node64 at 2009-05-11 23:28:30