Trace number 3433891

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 0.162975 0.16385

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 benchmark0.159975
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 

0.09/0.16	WARNING: for repeatability, setting FPU to use double precision
0.09/0.16	============================[ Problem Statistics ]=============================
0.09/0.16	|                                                                             |
0.09/0.16	|  Number of variables:          4271                                         |
0.09/0.16	|  Number of clauses:           12618                                         |
0.09/0.16	|  Parse time:                   0.01 s                                       |
0.09/0.16	|  Eliminated clauses:           0.14 Mb                                      |
0.09/0.16	|  Simplification time:          0.02 s                                       |
0.09/0.16	|                                                                             |
0.09/0.16	============================[ Search Statistics ]=================================
0.09/0.16	| Conflicts |          ORIGINAL         |          LEARNT          | Progress    |
0.09/0.16	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |     Agility |
0.09/0.16	==================================================================================
0.09/0.16	|       100 |    1392     6844    23970 |     2509       99     23 |  0.258 % 13 |
0.09/0.16	|       250 |    1392     6824    23929 |     2760      249     19 |  0.258 % 19 |
0.09/0.16	|       475 |    1391     6824    23929 |     3036      473     21 |  0.281 % 22 |
0.09/0.16	|       812 |    1391     6807    23895 |     3340      809     29 |  0.281 % 18 |
0.09/0.16	|      1318 |    1391     6807    23895 |     3674     1315     28 |  0.281 % 19 |
0.09/0.16	|      2077 |    1391     6807    23895 |     4041     2074     29 |  0.281 % 20 |
0.09/0.16	|      3216 |    1391     6807    23895 |     4445     3213     29 |  0.281 % 20 |
0.09/0.16	|      4924 |    1391     6807    23895 |     4890     2680     24 |  0.281 % 19 |
0.09/0.16	===============================================================================
0.09/0.16	restarts              : 29
0.09/0.16	skipped               : 0
0.09/0.16	conflicts             : 5261           (32480 /sec)
0.09/0.16	decisions             : 19050          (0.00 % random) (117611 /sec)
0.09/0.16	propagations          : 718069         (4433209 /sec)
0.09/0.16	conflict literals     : 145049         (21.67 % deleted)
0.09/0.16	Memory used           : 20.00 MB
0.09/0.16	CPU time              : 0.161975 s
0.09/0.16	
0.09/0.16	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: 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-3433891-1306842952/watcher-3433891-1306842952 -o /tmp/evaluation-result-3433891-1306842952/solver-3433891-1306842952 -C 5000 -W 5100 -M 15500 minisat HOME/instance-3433891-1306842952.cnf 

running on 4 cores: 1,3,5,7

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: 1.00 0.25 0.08 2/424 1245
/proc/meminfo: memFree=2987320/32951124 swapFree=44043512/67111528
[pid=1245] ppid=1243 vsize=19540 CPUtime=0 cores=1,3,5,7
/proc/1245/stat : 1245 (minisat) R 1243 1245 1152 0 -1 4202496 498 0 0 0 0 0 0 0 25 0 1 0 795893392 20008960 433 33554432000 4194304 4291235 140734494998560 18446744073709551615 4277932 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/1245/statm: 4885 433 213 24 0 1519 0

[startup+0.027543 s]
/proc/loadavg: 1.00 0.25 0.08 2/424 1245
/proc/meminfo: memFree=2987320/32951124 swapFree=44043512/67111528
[pid=1245] ppid=1243 vsize=17012 CPUtime=0.02 cores=1,3,5,7
/proc/1245/stat : 1245 (minisat) R 1243 1245 1152 0 -1 4202496 1089 0 0 0 2 0 0 0 25 0 1 0 795893392 17420288 829 33554432000 4194304 4291235 140734494998560 18446744073709551615 4256080 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/1245/statm: 4253 829 248 24 0 887 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 17012

[startup+0.100529 s]
/proc/loadavg: 1.00 0.25 0.08 2/424 1245
/proc/meminfo: memFree=2987320/32951124 swapFree=44043512/67111528
[pid=1245] ppid=1243 vsize=17396 CPUtime=0.09 cores=1,3,5,7
/proc/1245/stat : 1245 (minisat) R 1243 1245 1152 0 -1 4202496 1196 0 0 0 9 0 0 0 25 0 1 0 795893392 17813504 933 33554432000 4194304 4291235 140734494998560 18446744073709551615 4256357 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/1245/statm: 4349 933 258 24 0 983 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17396

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

Child status: 20
Real time (s): 0.16385
CPU time (s): 0.162975
CPU user time (s): 0.162975
CPU system time (s): 0
CPU usage (%): 99.466
Max. virtual memory (cumulated for all children) (KiB): 17396

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.162975
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1370
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= 1

runsolver used 0.007998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node134 at 2011-05-31 13:55:52
IDJOB=3433891
IDBENCH=70767
IDSOLVER=1930
FILE ID=node134/3433891-1306842952
RUNJOBID= node134-1306842918-1171
PBS_JOBID= 13482018
Free space on /tmp= 18960 MiB

SOLVER NAME= minisat hack: MiniSAT 2.2.0-agile-26
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3433891-1306842952/watcher-3433891-1306842952 -o /tmp/evaluation-result-3433891-1306842952/solver-3433891-1306842952 -C 5000 -W 5100 -M 15500  minisat HOME/instance-3433891-1306842952.cnf

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

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=895178280

node134.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		: 2666.831
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	: 5333.66
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		: 2666.831
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	: 5332.67
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		: 2666.831
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	: 5332.83
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		: 2666.831
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	: 7186.06
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		: 2666.831
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       2987600 kB
Buffers:         61800 kB
Cached:       22343724 kB
SwapCached:       9328 kB
Active:       18062696 kB
Inactive:     11073124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       2987600 kB
SwapTotal:    67111528 kB
SwapFree:     44043512 kB
Dirty:          304300 kB
Writeback:           0 kB
AnonPages:     6728628 kB
Mapped:          21364 kB
Slab:           670024 kB
PageTables:      90808 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 111787436 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 18960 MiB
End job on node134 at 2011-05-31 13:55:52