Trace number 3261507

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
Lingeling 587UNSAT 0.52092 0.523345

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-6-9-unsat.cnf
MD5SUMbfd2524dbb7ffd28476c17fbc77b8353
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.051992
Satisfiable
(Un)Satisfiability was proved
Number of variables54
Number of clauses171
Sum of the clauses size594
Maximum clause length9
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2135
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 536

Solver Data 

0.48/0.52	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: 935)

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-3261507-1303542352/watcher-3261507-1303542352 -o /tmp/evaluation-result-3261507-1303542352/solver-3261507-1303542352 -C 2400 -W 1300 -M 7680 lingeling HOME/instance-3261507-1303542352.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: 1.76 2.78 3.07 4/174 3648
/proc/meminfo: memFree=18683312/32951132 swapFree=67111528/67111528
[pid=3647] ppid=3645 vsize=6564 CPUtime=0 cores=4,6
/proc/3647/stat : 3647 (lingeling) R 3645 3647 3101 0 -1 4202496 240 0 0 0 0 0 0 0 23 0 1 0 465834811 6721536 181 33554432000 4194304 4409164 140733424712304 18446744073709551615 4310066 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/3647/statm: 1641 181 138 53 0 64 0

[startup+0.0599101 s]
/proc/loadavg: 1.76 2.78 3.07 4/174 3648
/proc/meminfo: memFree=18683312/32951132 swapFree=67111528/67111528
[pid=3647] ppid=3645 vsize=7140 CPUtime=0.05 cores=4,6
/proc/3647/stat : 3647 (lingeling) R 3645 3647 3101 0 -1 4202496 386 0 0 0 5 0 0 0 23 0 1 0 465834811 7311360 327 33554432000 4194304 4409164 140733424712304 18446744073709551615 274664832919 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/3647/statm: 1785 327 140 53 0 208 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7140

[startup+0.100906 s]
/proc/loadavg: 1.76 2.78 3.07 4/174 3648
/proc/meminfo: memFree=18683312/32951132 swapFree=67111528/67111528
[pid=3647] ppid=3645 vsize=7384 CPUtime=0.09 cores=4,6
/proc/3647/stat : 3647 (lingeling) R 3645 3647 3101 0 -1 4202496 528 0 0 0 9 0 0 0 23 0 1 0 465834811 7561216 399 33554432000 4194304 4409164 140733424712304 18446744073709551615 274664832919 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/3647/statm: 1846 399 141 53 0 269 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7384

[startup+0.300836 s]
/proc/loadavg: 1.76 2.78 3.07 4/174 3648
/proc/meminfo: memFree=18683312/32951132 swapFree=67111528/67111528
[pid=3647] ppid=3645 vsize=7448 CPUtime=0.29 cores=4,6
/proc/3647/stat : 3647 (lingeling) R 3645 3647 3101 0 -1 4202496 1027 0 0 0 29 0 0 0 25 0 1 0 465834811 7626752 415 33554432000 4194304 4409164 140733424712304 18446744073709551615 4358434 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/3647/statm: 1862 415 141 53 0 285 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7448

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

[startup+0.500839 s]
/proc/loadavg: 1.76 2.78 3.07 4/174 3648
/proc/meminfo: memFree=18683312/32951132 swapFree=67111528/67111528
[pid=3647] ppid=3645 vsize=7400 CPUtime=0.48 cores=4,6
/proc/3647/stat : 3647 (lingeling) R 3645 3647 3101 0 -1 4202496 1506 0 0 0 48 0 0 0 25 0 1 0 465834811 7577600 403 33554432000 4194304 4409164 140733424712304 18446744073709551615 274664832919 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/3647/statm: 1850 403 141 53 0 273 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 7400

Child status: 20
Real time (s): 0.523345
CPU time (s): 0.52092
CPU user time (s): 0.510922
CPU system time (s): 0.009998
CPU usage (%): 99.5366
Max. virtual memory (cumulated for all children) (KiB): 7448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.510922
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1509
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= 3
involuntary context switches= 4

runsolver used 0.004999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-23 09:05:52
IDJOB=3261507
IDBENCH=83232
IDSOLVER=1606
FILE ID=node131/3261507-1303542352
RUNJOBID= node131-1303542352-3630
PBS_JOBID= 13143107
Free space on /tmp= 72048 MiB

SOLVER NAME= Lingeling 587
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-6-9-unsat.cnf
COMMAND LINE= lingeling BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3261507-1303542352/watcher-3261507-1303542352 -o /tmp/evaluation-result-3261507-1303542352/solver-3261507-1303542352 -C 2400 -W 1300 -M 7680  lingeling HOME/instance-3261507-1303542352.cnf

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

MD5SUM BENCH= bfd2524dbb7ffd28476c17fbc77b8353
RANDOM SEED=1278104292

node131.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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.77
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951132 kB
MemFree:      18683732 kB
Buffers:        986700 kB
Cached:       12703860 kB
SwapCached:          0 kB
Active:        4136960 kB
Inactive:      9619884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      18683732 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             460 kB
Writeback:           0 kB
AnonPages:       65836 kB
Mapped:          14712 kB
Slab:           448292 kB
PageTables:       4748 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   189944 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72044 MiB
End job on node131 at 2011-04-23 09:05:52