Trace number 1773442

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 2.1 (Sat-race'08 Edition)UNSAT 16.0926 16.0988

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.0926
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.05/0.06	c |  Number of variables:          7000                                         |
0.05/0.06	c |  Number of clauses:           67553                                         |
0.05/0.06	c |  Parse time:                   0.06 s                                       |
0.29/0.31	c |  Simplification time:          0.25 s                                       |
0.29/0.31	c |                                                                             |
0.29/0.31	c ============================[ Search Statistics ]==============================
0.29/0.31	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.29/0.31	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.29/0.31	c ===============================================================================
0.29/0.33	c |       100 |    5069    62152   194351 |    22789       99     21 |  1.929 % |
0.29/0.35	c |       250 |    5069    62152   194351 |    25067      249     23 |  1.929 % |
0.29/0.37	c |       475 |    5068    61448   192551 |    27574      473     23 |  1.943 % |
0.38/0.40	c |       812 |    5068    61448   192551 |    30332      810     27 |  1.943 % |
0.38/0.44	c |      1318 |    5068    61448   192551 |    33365     1316     29 |  1.943 % |
0.48/0.52	c |      2077 |    5068    61448   192551 |    36702     2075     28 |  1.943 % |
0.58/0.65	c |      3216 |    5068    61448   192551 |    40372     3214     31 |  1.943 % |
0.79/0.82	c |      4924 |    5068    61448   192551 |    44409     4922     33 |  1.943 % |
0.99/1.06	c |      7486 |    5068    61448   192551 |    48850     7484     32 |  1.943 % |
1.39/1.49	c |     11330 |    5068    61448   192551 |    53735    11328     32 |  1.943 % |
2.19/2.29	c |     17096 |    5068    61448   192551 |    59108    17094     32 |  1.943 % |
3.49/3.52	c |     25745 |    5067    61432   192513 |    65019    25742     33 |  1.957 % |
5.39/5.50	c |     38719 |    5067    61432   192513 |    71521    38716     34 |  1.957 % |
9.19/9.26	c |     58180 |    5067    61432   192513 |    78674    58177     35 |  1.957 % |
15.89/15.98	c |     87372 |    4707    51146   165663 |    86541    16440     31 |  7.100 % |
15.99/16.09	c ===============================================================================
15.99/16.09	c restarts              : 254
15.99/16.09	c conflicts             : 87813          (5476 /sec)
15.99/16.09	c decisions             : 143806         (8968 /sec)
15.99/16.09	c propagations          : 27082038       (1688874 /sec)
15.99/16.09	c conflict literals     : 3172073        (54.59 % deleted)
15.99/16.09	c Memory used           : 14.43 MB
15.99/16.09	c CPU time              : 16.0356 s
15.99/16.09	c 
15.99/16.09	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-1773442-1241211401/watcher-1773442-1241211401 -o /tmp/evaluation-result-1773442-1241211401/solver-1773442-1241211401 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773442-1241211401.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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 3/64 30140
/proc/meminfo: memFree=1159992/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=7468 CPUtime=0
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 410 0 0 0 0 0 0 0 18 0 1 0 149174043 7647232 394 1992294400 4194304 5092341 548682068848 18446744073709551615 4515195 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 1867 396 63 219 0 1645 0

[startup+0.065139 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30140
/proc/meminfo: memFree=1159992/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11064 CPUtime=0.05
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 1641 0 0 0 5 0 0 0 18 0 1 0 149174043 11329536 1523 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2766 1523 63 219 0 2544 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11064

[startup+0.101144 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30140
/proc/meminfo: memFree=1159992/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11324 CPUtime=0.09
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 1753 0 0 0 9 0 0 0 18 0 1 0 149174043 11595776 1635 1992294400 4194304 5092341 548682068848 18446744073709551615 4219466 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2831 1635 88 219 0 2609 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11324

[startup+0.301178 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30140
/proc/meminfo: memFree=1159992/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11892 CPUtime=0.29
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 1991 0 0 0 29 0 0 0 19 0 1 0 149174043 12177408 1873 1992294400 4194304 5092341 548682068848 18446744073709551615 4205680 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2973 1873 88 219 0 2751 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11892

[startup+0.701249 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30140
/proc/meminfo: memFree=1159992/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11528 CPUtime=0.68
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 2378 0 0 0 68 0 0 0 22 0 1 0 149174043 11804672 1756 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2882 1756 101 219 0 2660 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11528

[startup+1.50139 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1152880/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11528 CPUtime=1.49
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 2628 0 0 0 148 1 0 0 25 0 1 0 149174043 11804672 2006 1992294400 4194304 5092341 548682068848 18446744073709551615 4241064 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2882 2006 101 219 0 2660 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11528

[startup+3.10167 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1151728/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=11664 CPUtime=3.09
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 3096 0 0 0 308 1 0 0 25 0 1 0 149174043 11943936 2474 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 2916 2474 101 219 0 2694 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11664

[startup+6.30223 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1147184/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=15524 CPUtime=6.29
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 4141 0 0 0 627 2 0 0 25 0 1 0 149174043 15896576 3519 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 3881 3519 101 219 0 3659 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 15524

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1140272/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=26876 CPUtime=12.68
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 5725 0 0 0 1264 4 0 0 25 0 1 0 149174043 27521024 5103 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 6719 5103 101 219 0 6497 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 26876

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

[startup+14.3056 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1138352/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=27012 CPUtime=14.28
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 6028 0 0 0 1424 4 0 0 25 0 1 0 149174043 27660288 5406 1992294400 4194304 5092341 548682068848 18446744073709551615 4252116 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 6753 5406 101 219 0 6531 0
Current children cumulated CPU time (s) 14.28
Current children cumulated vsize (KiB) 27012

[startup+15.1018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1138352/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=14776 CPUtime=15.09
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 6973 0 0 0 1504 5 0 0 25 0 1 0 149174043 15130624 3094 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 3694 3094 101 219 0 3472 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 14776

[startup+15.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1147376/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=14776 CPUtime=15.49
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 7072 0 0 0 1544 5 0 0 25 0 1 0 149174043 15130624 3193 1992294400 4194304 5092341 548682068848 18446744073709551615 4251460 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 3694 3193 101 219 0 3472 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 14776

[startup+15.9019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1147376/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=14776 CPUtime=15.89
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 7167 0 0 0 1584 5 0 0 25 0 1 0 149174043 15130624 3288 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 3694 3288 101 219 0 3472 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 14776

[startup+16.0019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30141
/proc/meminfo: memFree=1147376/2055920 swapFree=4180136/4192956
[pid=30140] ppid=30138 vsize=14776 CPUtime=15.99
/proc/30140/stat : 30140 (minisat) R 30138 30140 30022 0 -1 4194304 7186 0 0 0 1594 5 0 0 25 0 1 0 149174043 15130624 3307 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/30140/statm: 3694 3307 101 219 0 3472 0
Current children cumulated CPU time (s) 15.99
Current children cumulated vsize (KiB) 14776

Child status: 20
Real time (s): 16.0988
CPU time (s): 16.0926
CPU user time (s): 16.0356
CPU system time (s): 0.056991
CPU usage (%): 99.9613
Max. virtual memory (cumulated for all children) (KiB): 32296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.0356
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7208
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= 31

runsolver used 0.018997 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node4 at 2009-05-01 22:56:41
IDJOB=1773442
IDBENCH=69594
IDSOLVER=608
FILE ID=node4/1773442-1241211401
PBS_JOBID= 9224723
Free space on /tmp= 66384 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773442-1241211401/watcher-1773442-1241211401 -o /tmp/evaluation-result-1773442-1241211401/solver-1773442-1241211401 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773442-1241211401.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=1770955992

node4.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		: 3000.265
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		: 3000.265
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:       1160472 kB
Buffers:         73256 kB
Cached:         747060 kB
SwapCached:       7244 kB
Active:         241812 kB
Inactive:       587784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1160472 kB
SwapTotal:     4192956 kB
SwapFree:      4180136 kB
Dirty:            2004 kB
Writeback:           0 kB
Mapped:          13572 kB
Slab:            51768 kB
Committed_AS:   852012 kB
PageTables:       1492 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= 66384 MiB
End job on node4 at 2009-05-01 22:56:57