Trace number 1553222

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
IUT_BMB_SAT 1.0UNSAT 0.865867 0.864858

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.418935
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
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 IUT_BMB_SAT version 1.0
0.09/0.17	c WARNING: for repeatability, setting FPU to use double precision
0.09/0.17	c ============================[ Problem Statistics ]=============================
0.09/0.17	c |                                                                             |
0.09/0.17	c |  Number of variables:  4210                                                 |
0.09/0.17	c |  Number of clauses:    12009                                                |
0.09/0.19	c |  Parsing time:         0.01         s                                       |
0.17/0.34	c ============================[ Search Statistics ]==============================
0.17/0.34	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.17/0.34	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.17/0.34	c ===============================================================================
0.17/0.34	c |         0 |     679     5005    40059 |     1668        0    nan |  0.000 % |
0.17/0.35	c |       101 |     679     5005    40059 |     1835      101      8 |  0.000 % |
0.17/0.36	c |       253 |     679     5005    40059 |     2018      253     22 |  0.000 % |
0.17/0.36	c |       479 |     678     5005    40059 |     2220      478     26 |  0.048 % |
0.17/0.38	c |       816 |     677     4993    40021 |     2442      809     31 |  0.048 % |
0.17/0.40	c |      1325 |     677     4993    40021 |     2686     1318     41 |  0.048 % |
0.17/0.42	c |      2084 |     677     4993    40021 |     2955     2077     41 |  0.048 % |
0.17/0.49	c |      3223 |     677     4993    40021 |     3251     1651     49 |  0.048 % |
0.17/0.57	c |      4931 |     677     4993    40021 |     3576     3359     50 |  0.048 % |
0.17/0.69	c |      7493 |     677     4993    40021 |     3933     2150     58 |  0.048 % |
0.17/0.84	c ===============================================================================
0.17/0.84	c restarts              : 10
0.17/0.84	c conflicts             : 10549          (15889 /sec)
0.17/0.84	c decisions             : 30172          (1.70 % random) (45447 /sec)
0.17/0.84	c propagations          : 483894         (728867 /sec)
0.17/0.84	c conflict literals     : 537484         (24.64 % deleted)
0.17/0.84	c Memory used           : 5.15 MB
0.17/0.84	c CPU time              : 0.663899 s
0.17/0.84	
0.17/0.85	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-1553222-1238712420/watcher-1553222-1238712420 -o /tmp/evaluation-result-1553222-1238712420/solver-1553222-1238712420 -C 1200 -W 1800 -M 1800 --output-limit 1,15 IUT_BMB_SAT HOME/instance-1553222-1238712420.cnf HOME 

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
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: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=1916 CPUtime=0
/proc/14094/stat : 14094 (IUT_BMB_SAT) R 14092 14094 13996 0 -1 4194304 307 0 0 0 0 0 0 0 18 0 1 0 1143903240 1961984 290 1992294400 134512640 135635285 4294956208 18446744073709551615 135070400 0 0 4096 0 0 0 0 17 0 0 0
/proc/14094/statm: 479 291 97 274 0 202 0

[startup+0.0503041 s]
/proc/loadavg: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=2576 CPUtime=0.04
/proc/14094/stat : 14094 (IUT_BMB_SAT) R 14092 14094 13996 0 -1 4194304 466 0 0 0 4 0 0 0 18 0 1 0 1143903240 2637824 449 1992294400 134512640 135635285 4294956208 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/14094/statm: 644 449 97 274 0 367 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2576

[startup+0.101307 s]
/proc/loadavg: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=3764 CPUtime=0.09
/proc/14094/stat : 14094 (IUT_BMB_SAT) R 14092 14094 13996 0 -1 4194304 756 0 0 0 9 0 0 0 18 0 1 0 1143903240 3854336 739 1992294400 134512640 135635285 4294956208 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/14094/statm: 941 740 97 274 0 664 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3764

[startup+0.301323 s]
/proc/loadavg: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=3828 CPUtime=0.17
/proc/14094/stat : 14094 (IUT_BMB_SAT) S 14092 14094 13996 0 -1 4194304 794 0 0 0 12 5 0 0 18 0 1 0 1143903240 3919872 776 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/14094/statm: 957 776 105 274 0 680 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 3828

[startup+0.701357 s]
/proc/loadavg: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=3828 CPUtime=0.17
/proc/14094/stat : 14094 (IUT_BMB_SAT) S 14092 14094 13996 0 -1 4194304 794 0 0 0 12 5 0 0 18 0 1 0 1143903240 3919872 776 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/14094/statm: 957 776 105 274 0 680 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 3828

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

[startup+0.801365 s]
/proc/loadavg: 2.00 1.93 1.68 3/76 14094
/proc/meminfo: memFree=1481720/2055920 swapFree=4173760/4192956
[pid=14094] ppid=14092 vsize=3828 CPUtime=0.17
/proc/14094/stat : 14094 (IUT_BMB_SAT) S 14092 14094 13996 0 -1 4194304 794 0 0 0 12 5 0 0 18 0 1 0 1143903240 3919872 776 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/14094/statm: 957 776 105 274 0 680 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 3828

Child status: 0
Real time (s): 0.864858
CPU time (s): 0.865867
CPU user time (s): 0.798878
CPU system time (s): 0.066989
CPU usage (%): 100.117
Max. virtual memory (cumulated for all children) (KiB): 3828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.798878
system time used= 0.066989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2608
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= 8
involuntary context switches= 5

runsolver used 0.005999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node65 at 2009-04-03 00:47:00
IDJOB=1553222
IDBENCH=70757
IDSOLVER=523
FILE ID=node65/1553222-1238712420
PBS_JOBID= 9085319
Free space on /tmp= 66316 MiB

SOLVER NAME= IUT_BMB_SAT 1.0
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= IUT_BMB_SAT BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553222-1238712420/watcher-1553222-1238712420 -o /tmp/evaluation-result-1553222-1238712420/solver-1553222-1238712420 -C 1200 -W 1800 -M 1800 --output-limit 1,15  IUT_BMB_SAT HOME/instance-1553222-1238712420.cnf HOME

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=890997823

node65.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		: 3000.231
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		: 3000.231
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:       1482200 kB
Buffers:         94732 kB
Cached:         388952 kB
SwapCached:       9792 kB
Active:         243592 kB
Inactive:       251396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1482200 kB
SwapTotal:     4192956 kB
SwapFree:      4173760 kB
Dirty:            2352 kB
Writeback:           0 kB
Mapped:          16948 kB
Slab:            63504 kB
Committed_AS:  3670272 kB
PageTables:       2316 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= 66316 MiB
End job on node65 at 2009-04-03 00:47:01