Trace number 3362472

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 0.161974 0.165721

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor016.cnf
MD5SUM12a87f636ffe8e3dae243dd6ce90cac8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.161974
Satisfiable
(Un)Satisfiability was proved
Number of variables4271
Number of clauses12620
Sum of the clauses size29444
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28412
Number of clauses of size 34206
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.10/0.16	WARNING: for repeatability, setting FPU to use double precision
0.10/0.16	============================[ Problem Statistics ]=============================
0.10/0.16	|                                                                             |
0.10/0.16	|  Number of variables:          4271                                         |
0.10/0.16	|  Number of clauses:           12618                                         |
0.10/0.16	|  Parse time:                   0.00 s                                       |
0.10/0.16	|  Eliminated clauses:           0.14 Mb                                      |
0.10/0.16	|  Simplification time:          0.02 s                                       |
0.10/0.16	|                                                                             |
0.10/0.16	============================[ Search Statistics ]==============================
0.10/0.16	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.10/0.16	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.10/0.16	===============================================================================
0.10/0.16	|       100 |    1392     6844    23970 |     2509       99     23 |  0.258 % |
0.10/0.16	|       250 |    1392     6824    23929 |     2760      249     19 |  0.258 % |
0.10/0.16	|       475 |    1391     6824    23929 |     3036      473     21 |  0.281 % |
0.10/0.16	|       812 |    1391     6807    23895 |     3340      809     29 |  0.281 % |
0.10/0.16	|      1318 |    1391     6807    23895 |     3674     1315     28 |  0.281 % |
0.10/0.16	|      2077 |    1391     6807    23895 |     4041     2074     29 |  0.281 % |
0.10/0.16	|      3216 |    1391     6807    23895 |     4445     3213     29 |  0.281 % |
0.10/0.16	|      4924 |    1391     6807    23895 |     4890     2680     24 |  0.281 % |
0.10/0.16	===============================================================================
0.10/0.16	restarts              : 29
0.10/0.16	conflicts             : 5261           (32886 /sec)
0.10/0.16	decisions             : 19050          (0.00 % random) (119081 /sec)
0.10/0.16	propagations          : 718069         (4488633 /sec)
0.10/0.16	conflict literals     : 145049         (21.67 % deleted)
0.10/0.16	Memory used           : 20.00 MB
0.10/0.16	CPU time              : 0.159975 s
0.10/0.16	
0.10/0.16	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-3362472-1305306552/watcher-3362472-1305306552 -o /tmp/evaluation-result-3362472-1305306552/solver-3362472-1305306552 -C 2400 -W 1300 -M 7680 minisat_release HOME/instance-3362472-1305306552.cnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.68 3.93 3.97 3/357 8493
/proc/meminfo: memFree=25739476/32950928 swapFree=38710892/67111528
[pid=8493] ppid=8491 vsize=19392 CPUtime=0 cores=4,6
/proc/8493/stat : 8493 (minisat_release) R 8491 8493 8457 0 -1 4202496 450 0 0 0 0 0 0 0 21 0 1 0 720885868 19857408 388 33554432000 4194304 4291037 140736537255568 18446744073709551615 4277897 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/8493/statm: 4848 388 213 24 0 1482 0

[startup+0.1101 s]
/proc/loadavg: 3.68 3.93 3.97 3/357 8493
/proc/meminfo: memFree=25739476/32950928 swapFree=38710892/67111528
[pid=8493] ppid=8491 vsize=17396 CPUtime=0.1 cores=4,6
/proc/8493/stat : 8493 (minisat_release) R 8491 8493 8457 0 -1 4202496 1204 0 0 0 10 0 0 0 22 0 1 0 720885868 17813504 941 33554432000 4194304 4291037 140736537255568 18446744073709551615 4255840 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/8493/statm: 4349 941 258 24 0 983 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 17396

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

[startup+0.1101 s]
/proc/loadavg: 3.68 3.93 3.97 3/357 8493
/proc/meminfo: memFree=25739476/32950928 swapFree=38710892/67111528
[pid=8493] ppid=8491 vsize=17396 CPUtime=0.1 cores=4,6
/proc/8493/stat : 8493 (minisat_release) R 8491 8493 8457 0 -1 4202496 1204 0 0 0 10 0 0 0 22 0 1 0 720885868 17813504 941 33554432000 4194304 4291037 140736537255568 18446744073709551615 4255840 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/8493/statm: 4349 941 258 24 0 983 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 17396

Child status: 20
Real time (s): 0.165721
CPU time (s): 0.161974
CPU user time (s): 0.159975
CPU system time (s): 0.001999
CPU usage (%): 97.739
Max. virtual memory (cumulated for all children) (KiB): 17396

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.159975
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= 1369
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= 5
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node113 at 2011-05-13 19:09:12
IDJOB=3362472
IDBENCH=70767
IDSOLVER=1840
FILE ID=node113/3362472-1305306552
RUNJOBID= node113-1305306552-8476
PBS_JOBID= 13321475
Free space on /tmp= 47792 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3362472-1305306552/watcher-3362472-1305306552 -o /tmp/evaluation-result-3362472-1305306552/solver-3362472-1305306552 -C 2400 -W 1300 -M 7680  minisat_release HOME/instance-3362472-1305306552.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=175751705

node113.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5332.76
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      25739880 kB
Buffers:        197824 kB
Cached:        2367828 kB
SwapCached:      93712 kB
Active:         681396 kB
Inactive:      6275220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      25739880 kB
SwapTotal:    67111528 kB
SwapFree:     38710892 kB
Dirty:             884 kB
Writeback:           0 kB
AnonPages:     4310104 kB
Mapped:          12452 kB
Slab:            95536 kB
PageTables:      92292 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 87048148 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= 47780 MiB
End job on node113 at 2011-05-13 19:09:12