Trace number 3420212

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 reference: minisat 2.2.0UNSAT 0.109982 0.110684

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 |          |
0.09/0.11	===============================================================================
0.09/0.11	|       100 |    2233     8161    21711 |     2992      100     38 |  0.002 % |
0.09/0.11	|       250 |    2233     8161    21711 |     3291      250     30 |  0.000 % |
0.09/0.11	|       475 |    2233     8161    21711 |     3620      475     30 |  0.000 % |
0.09/0.11	|       812 |    2233     8161    21711 |     3982      812     32 |  0.001 % |
0.09/0.11	|      1318 |    2232     8156    21694 |     4381     1298     28 |  0.036 % |
0.09/0.11	===============================================================================
0.09/0.11	restarts              : 13
0.09/0.11	conflicts             : 1881           (17419 /sec)
0.09/0.11	decisions             : 3995           (0.00 % random) (36997 /sec)
0.09/0.11	propagations          : 615834         (5703064 /sec)
0.09/0.11	conflict literals     : 51195          (39.37 % deleted)
0.09/0.11	Memory used           : 20.00 MB
0.09/0.11	CPU time              : 0.107983 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: 961)

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-3420212-1306590009/watcher-3420212-1306590009 -o /tmp/evaluation-result-3420212-1306590009/solver-3420212-1306590009 -C 5000 -W 5100 -M 15500 minisat_release HOME/instance-3420212-1306590009.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: 1.99 2.00 2.00 2/558 26848
/proc/meminfo: memFree=23788920/32951124 swapFree=39849780/67111528
[pid=26848] ppid=26846 vsize=20580 CPUtime=0.01 cores=0,2,4,6
/proc/26848/stat : 26848 (minisat_release) R 26846 26848 26137 0 -1 4202496 810 0 0 0 1 0 0 0 25 0 1 0 849231587 21073920 731 33554432000 4194304 4291037 140736555933808 18446744073709551615 4277998 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/26848/statm: 5145 731 239 24 0 1779 0

[startup+0.0695611 s]
/proc/loadavg: 1.99 2.00 2.00 2/558 26848
/proc/meminfo: memFree=23788920/32951124 swapFree=39849780/67111528
[pid=26848] ppid=26846 vsize=16612 CPUtime=0.06 cores=0,2,4,6
/proc/26848/stat : 26848 (minisat_release) R 26846 26848 26137 0 -1 4202496 907 0 0 0 6 0 0 0 25 0 1 0 849231587 17010688 745 33554432000 4194304 4291037 140736555933808 18446744073709551615 4255676 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/26848/statm: 4153 745 256 24 0 787 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16612

[startup+0.100581 s]
/proc/loadavg: 1.99 2.00 2.00 2/558 26848
/proc/meminfo: memFree=23788920/32951124 swapFree=39849780/67111528
[pid=26848] ppid=26846 vsize=16612 CPUtime=0.09 cores=0,2,4,6
/proc/26848/stat : 26848 (minisat_release) R 26846 26848 26137 0 -1 4202496 924 0 0 0 9 0 0 0 25 0 1 0 849231587 17010688 760 33554432000 4194304 4291037 140736555933808 18446744073709551615 4262832 0 0 4096 8388610 0 0 0 17 2 0 0 0
/proc/26848/statm: 4153 760 256 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): 0.110684
CPU time (s): 0.109982
CPU user time (s): 0.107983
CPU system time (s): 0.001999
CPU usage (%): 99.3658
Max. virtual memory (cumulated for all children) (KiB): 16612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.107983
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= 942
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= 1

runsolver used 0.008998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-05-28 15:40:09
IDJOB=3420212
IDBENCH=88003
IDSOLVER=1912
FILE ID=node118/3420212-1306590009
RUNJOBID= node118-1306579394-26155
PBS_JOBID= 13471562
Free space on /tmp= 73260 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT02/industrial/goldberg/rand_net/rand_net60-30-1.shuffled.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3420212-1306590009/watcher-3420212-1306590009 -o /tmp/evaluation-result-3420212-1306590009/solver-3420212-1306590009 -C 5000 -W 5100 -M 15500  minisat_release HOME/instance-3420212-1306590009.cnf

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

MD5SUM BENCH= 4297b314a32658522bc6751e20d6be5c
RANDOM SEED=13624901

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.75
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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	: 5332.75
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23789068 kB
Buffers:        182272 kB
Cached:        1608440 kB
SwapCached:      52848 kB
Active:         894812 kB
Inactive:      7976744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23789068 kB
SwapTotal:    67111528 kB
SwapFree:     39849780 kB
Dirty:             840 kB
Writeback:           0 kB
AnonPages:     7041160 kB
Mapped:          25808 kB
Slab:           104376 kB
PageTables:     115480 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 183916712 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= 73260 MiB
End job on node118 at 2011-05-28 15:40:09