Trace number 3434148

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 4.02239 4.02357

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-6-U-7061.cnf
MD5SUMb15321a24257fa4bdfd9c20c782f4c0e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.00339
Satisfiable
(Un)Satisfiability was proved
Number of variables370048
Number of clauses1118066
Sum of the clauses size2910246
Maximum clause length493
Minimum clause length1
Number of clauses of size 194
Number of clauses of size 2742801
Number of clauses of size 3369913
Number of clauses of size 41454
Number of clauses of size 5618
Number of clauses of size over 53186

Solver Data 

3.99/4.01	WARNING: for repeatability, setting FPU to use double precision
3.99/4.01	============================[ Problem Statistics ]=============================
3.99/4.01	|                                                                             |
3.99/4.01	|  Number of variables:        370048                                         |
3.99/4.01	|  Number of clauses:         1059934                                         |
3.99/4.01	|  Parse time:                   0.48 s                                       |
3.99/4.01	|  Eliminated clauses:           9.70 Mb                                      |
3.99/4.01	|  Simplification time:          2.71 s                                       |
3.99/4.01	|                                                                             |
3.99/4.01	============================[ Search Statistics ]=================================
3.99/4.01	| Conflicts |          ORIGINAL         |          LEARNT          | Progress    |
3.99/4.01	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |     Agility |
3.99/4.01	==================================================================================
3.99/4.01	|       100 |   68129   407829  1307727 |   149537       99     18 |  9.019 %  5 |
3.99/4.01	|       250 |   67905   407829  1307727 |   164491      241     21 |  9.079 % 10 |
3.99/4.01	|       475 |   67880   407829  1307727 |   180940      462     32 |  9.086 %  4 |
3.99/4.01	|       812 |   67544   404736  1296774 |   199034      731     32 |  9.177 %  1 |
3.99/4.01	===============================================================================
3.99/4.01	restarts              : 7
3.99/4.01	skipped               : 0
3.99/4.01	conflicts             : 979            (250 /sec)
3.99/4.01	decisions             : 3513           (0.00 % random) (895 /sec)
3.99/4.01	propagations          : 4609576        (1174892 /sec)
3.99/4.01	conflict literals     : 28056          (37.84 % deleted)
3.99/4.01	Memory used           : 184.00 MB
3.99/4.01	CPU time              : 3.9234 s
3.99/4.01	
3.99/4.01	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-3434148-1306850793/watcher-3434148-1306850793 -o /tmp/evaluation-result-3434148-1306850793/solver-3434148-1306850793 -C 5000 -W 5100 -M 15500 minisat HOME/instance-3434148-1306850793.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: 2.10 2.05 2.01 2/477 6244
/proc/meminfo: memFree=7161532/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=28164 CPUtime=0 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 2328 0 0 0 0 0 0 0 23 0 1 0 777494688 28839936 2268 33554432000 4194304 4291235 140734122560304 18446744073709551615 4277553 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 7041 2271 216 24 0 3675 0

[startup+0.100521 s]
/proc/loadavg: 2.10 2.05 2.01 2/477 6244
/proc/meminfo: memFree=7161532/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=66684 CPUtime=0.09 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 11057 0 0 0 8 1 0 0 23 0 1 0 777494688 68284416 10863 33554432000 4194304 4291235 140734122560304 18446744073709551615 254261277381 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 16671 10864 216 24 0 13305 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 66684

[startup+0.200506 s]
/proc/loadavg: 2.10 2.05 2.01 2/477 6244
/proc/meminfo: memFree=7161532/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=83800 CPUtime=0.19 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 16306 0 0 0 17 2 0 0 24 0 1 0 777494688 85811200 15384 33554432000 4194304 4291235 140734122560304 18446744073709551615 254261277381 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 20983 15387 216 24 0 17617 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 83800

[startup+0.300488 s]
/proc/loadavg: 2.10 2.05 2.01 2/477 6244
/proc/meminfo: memFree=7161532/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=102692 CPUtime=0.29 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 21937 0 0 0 26 3 0 0 24 0 1 0 777494688 105156608 20019 33554432000 4194304 4291235 140734122560304 18446744073709551615 4277976 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 25673 20020 216 24 0 22307 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 102692

[startup+0.700418 s]
/proc/loadavg: 2.10 2.05 2.01 2/477 6244
/proc/meminfo: memFree=7161532/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=156472 CPUtime=0.69 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 34805 0 0 0 64 5 0 0 25 0 1 0 777494688 160227328 30654 33554432000 4194304 4291235 140734122560304 18446744073709551615 4230240 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 39118 30654 237 24 0 35752 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 156472

[startup+1.50032 s]
/proc/loadavg: 2.10 2.05 2.01 3/478 6245
/proc/meminfo: memFree=7038624/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=164128 CPUtime=1.49 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 37939 0 0 0 144 5 0 0 25 0 1 0 777494688 168067072 33626 33554432000 4194304 4291235 140734122560304 18446744073709551615 4216911 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 41032 33628 239 24 0 37666 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 164128

[startup+3.10103 s]
/proc/loadavg: 2.10 2.05 2.01 3/478 6245
/proc/meminfo: memFree=7019652/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=179768 CPUtime=3.09 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 54675 0 0 0 301 8 0 0 25 0 1 0 777494688 184082432 37887 33554432000 4194304 4291235 140734122560304 18446744073709551615 4230019 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 44942 37887 239 24 0 41576 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 179768

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

[startup+3.201 s]
/proc/loadavg: 2.10 2.05 2.01 3/478 6245
/proc/meminfo: memFree=7019652/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=179768 CPUtime=3.19 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 54725 0 0 0 311 8 0 0 25 0 1 0 777494688 184082432 37932 33554432000 4194304 4291235 140734122560304 18446744073709551615 4230264 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 44942 37932 239 24 0 41576 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 179768

[startup+3.60093 s]
/proc/loadavg: 2.10 2.05 2.01 3/478 6245
/proc/meminfo: memFree=7017040/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=172536 CPUtime=3.59 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 56874 0 0 0 350 9 0 0 25 0 1 0 777494688 176676864 35449 33554432000 4194304 4291235 140734122560304 18446744073709551615 4248950 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/6244/statm: 43134 35449 255 24 0 39768 0
Current children cumulated CPU time (s) 3.59
Current children cumulated vsize (KiB) 172536

[startup+4.00081 s]
/proc/loadavg: 2.10 2.05 2.01 3/478 6245
/proc/meminfo: memFree=7017040/32951124 swapFree=67057928/67111528
[pid=6244] ppid=6242 vsize=172536 CPUtime=3.99 cores=0,2,4,6
/proc/6244/stat : 6244 (minisat) R 6242 6244 5718 0 -1 4202496 56890 0 0 0 390 9 0 0 25 0 1 0 777494688 176676864 35465 33554432000 4194304 4291235 140734122560304 18446744073709551615 4256145 0 0 4096 8388610 0 0 0 17 6 0 0 0
/proc/6244/statm: 43134 35465 255 24 0 39768 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 172536

Child status: 20
Real time (s): 4.02357
CPU time (s): 4.02239
CPU user time (s): 3.9234
CPU system time (s): 0.098984
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 188940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9234
system time used= 0.098984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 56905
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= 7

runsolver used 0.014997 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node140 at 2011-05-31 16:06:34
IDJOB=3434148
IDBENCH=88178
IDSOLVER=1930
FILE ID=node140/3434148-1306850793
RUNJOBID= node140-1306842918-5736
PBS_JOBID= 13482012
Free space on /tmp= 57520 MiB

SOLVER NAME= minisat hack: MiniSAT 2.2.0-agile-26
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-6-U-7061.cnf
COMMAND LINE= minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3434148-1306850793/watcher-3434148-1306850793 -o /tmp/evaluation-result-3434148-1306850793/solver-3434148-1306850793 -C 5000 -W 5100 -M 15500  minisat HOME/instance-3434148-1306850793.cnf

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

MD5SUM BENCH= b15321a24257fa4bdfd9c20c782f4c0e
RANDOM SEED=1912599354

node140.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		: 2666.833
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.74
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		: 2666.833
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       7161820 kB
Buffers:        221620 kB
Cached:       17762052 kB
SwapCached:       6932 kB
Active:       13561736 kB
Inactive:     11550556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7161820 kB
SwapTotal:    67111528 kB
SwapFree:     67057928 kB
Dirty:           22548 kB
Writeback:           0 kB
AnonPages:     7126420 kB
Mapped:          38108 kB
Slab:           556308 kB
PageTables:      52748 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 141624224 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= 57520 MiB
End job on node140 at 2011-05-31 16:06:38