Trace number 3434130

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 hack: MiniSAT 2.2.0-agile-26UNSAT 0.113981 0.116376

General information on the benchmark

NameSAT02/industrial/goldberg/rand_net/
rand_net60-30-1.shuffled.cnf
MD5SUM4297b314a32658522bc6751e20d6be5c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables3600
Number of clauses10681
Sum of the clauses size25140
Maximum clause length60
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 26960
Number of clauses of size 33720
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

Solver Data 

0.09/0.11	WARNING: for repeatability, setting FPU to use double precision
0.09/0.11	============================[ Problem Statistics ]=============================
0.09/0.11	|                                                                             |
0.09/0.11	|  Number of variables:          3600                                         |
0.09/0.11	|  Number of clauses:           10681                                         |
0.09/0.11	|  Parse time:                   0.01 s                                       |
0.09/0.11	|  Eliminated clauses:           0.06 Mb                                      |
0.09/0.11	|  Simplification time:          0.01 s                                       |
0.09/0.11	|                                                                             |
0.09/0.11	============================[ Search Statistics ]=================================
0.09/0.11	| Conflicts |          ORIGINAL         |          LEARNT          | Progress    |
0.09/0.11	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |     Agility |
0.09/0.11	==================================================================================
0.09/0.11	|       100 |    2233     8161    21711 |     2992      100     38 |  0.002 % 20 |
0.09/0.11	|       250 |    2233     8161    21711 |     3291      250     30 |  0.000 % 16 |
0.09/0.11	|       475 |    2233     8161    21711 |     3620      475     30 |  0.000 % 18 |
0.09/0.11	|       812 |    2233     8161    21711 |     3982      812     32 |  0.000 % 17 |
0.09/0.11	|      1318 |    2233     8161    21711 |     4381     1318     30 |  0.000 % 17 |
0.09/0.11	===============================================================================
0.09/0.11	restarts              : 13
0.09/0.11	skipped               : 1
0.09/0.11	conflicts             : 1909           (17047 /sec)
0.09/0.11	decisions             : 3864           (0.00 % random) (34506 /sec)
0.09/0.11	propagations          : 583141         (5207453 /sec)
0.09/0.11	conflict literals     : 52981          (42.66 % deleted)
0.09/0.11	Memory used           : 20.00 MB
0.09/0.11	CPU time              : 0.111982 s
0.09/0.11	
0.09/0.11	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3434130-1306900017/watcher-3434130-1306900017 -o /tmp/evaluation-result-3434130-1306900017/solver-3434130-1306900017 -C 5000 -W 5100 -M 15500 minisat HOME/instance-3434130-1306900017.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.07 1.24 1.60 2/558 14663
/proc/meminfo: memFree=4056644/32950928 swapFree=41528364/67111528
[pid=14663] ppid=14661 vsize=20580 CPUtime=0.01 cores=0,2,4,6
/proc/14663/stat : 14663 (minisat) R 14661 14663 13470 0 -1 4202496 811 0 0 0 1 0 0 0 23 0 1 0 801600382 21073920 731 33554432000 4194304 4291235 140736503202032 18446744073709551615 4278070 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/14663/statm: 5145 731 239 24 0 1779 0

[startup+0.081799 s]
/proc/loadavg: 1.07 1.24 1.60 2/558 14663
/proc/meminfo: memFree=4056644/32950928 swapFree=41528364/67111528
[pid=14663] ppid=14661 vsize=16612 CPUtime=0.07 cores=0,2,4,6
/proc/14663/stat : 14663 (minisat) R 14661 14663 13470 0 -1 4202496 913 0 0 0 7 0 0 0 23 0 1 0 801600382 17010688 751 33554432000 4194304 4291235 140736503202032 18446744073709551615 251813732096 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/14663/statm: 4153 751 256 24 0 787 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16612

[startup+0.100847 s]
/proc/loadavg: 1.07 1.24 1.60 2/558 14663
/proc/meminfo: memFree=4056644/32950928 swapFree=41528364/67111528
[pid=14663] ppid=14661 vsize=16612 CPUtime=0.09 cores=0,2,4,6
/proc/14663/stat : 14663 (minisat) R 14661 14663 13470 0 -1 4202496 923 0 0 0 9 0 0 0 23 0 1 0 801600382 17010688 761 33554432000 4194304 4291235 140736503202032 18446744073709551615 4256302 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/14663/statm: 4153 761 256 24 0 787 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16612

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

Child status: 20
Real time (s): 0.116376
CPU time (s): 0.113981
CPU user time (s): 0.111982
CPU system time (s): 0.001999
CPU usage (%): 97.942
Max. virtual memory (cumulated for all children) (KiB): 16612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.111982
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1005
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= 11
involuntary context switches= 18

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node126 at 2011-06-01 05:46:57
IDJOB=3434130
IDBENCH=88003
IDSOLVER=1930
FILE ID=node126/3434130-1306900017
RUNJOBID= node126-1306900017-14649
PBS_JOBID= 13488450
Free space on /tmp= 3484 MiB

SOLVER NAME= minisat hack: MiniSAT 2.2.0-agile-26
BENCH NAME= SAT02/industrial/goldberg/rand_net/rand_net60-30-1.shuffled.cnf
COMMAND LINE= minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3434130-1306900017/watcher-3434130-1306900017 -o /tmp/evaluation-result-3434130-1306900017/solver-3434130-1306900017 -C 5000 -W 5100 -M 15500  minisat HOME/instance-3434130-1306900017.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 4297b314a32658522bc6751e20d6be5c
RANDOM SEED=241347814

node126.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.56
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.80
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.783
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       4056808 kB
Buffers:        113996 kB
Cached:       26059800 kB
SwapCached:      15072 kB
Active:       14460512 kB
Inactive:     13467912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4056808 kB
SwapTotal:    67111528 kB
SwapFree:     41528364 kB
Dirty:             468 kB
Writeback:           0 kB
AnonPages:     1752836 kB
Mapped:          23364 kB
Slab:           794096 kB
PageTables:     100164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 176376492 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 3484 MiB
End job on node126 at 2011-06-01 05:46:57