Trace number 3261125

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
SApperloT 2011-03-23UNSAT 6.84396 6.84923

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-10-10-unsat.cnf
MD5SUM5ad28aa134f570fa0399980e14c0e5d4
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.487925
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses550
Sum of the clauses size1900
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2450
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5100

Solver Data 

6.79/6.84	
6.79/6.84	s UNSATISFIABLE
6.79/6.84	c Reason for Unsat: Learned empty clause

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-3261125-1303543765/watcher-3261125-1303543765 -o /tmp/evaluation-result-3261125-1303543765/solver-3261125-1303543765 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3261125-1303543765.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 3.91 3.80 5/189 2984
/proc/meminfo: memFree=14604644/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=6200 CPUtime=0 cores=4,6
/proc/2984/stat : 2984 (SApperloT) S 2982 2984 2352 0 -1 4194304 94 0 0 0 0 0 0 0 21 0 1 0 465973550 6348800 48 33554432000 4194304 4465733 140734567621824 18446744073709551615 239471771271 0 2147483391 4096 0 18446744071699207358 0 0 17 4 0 0 0
/proc/2984/statm: 1550 48 37 67 0 44 0

[startup+0.0914441 s]
/proc/loadavg: 3.68 3.91 3.80 5/189 2984
/proc/meminfo: memFree=14604644/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=12888 CPUtime=0.08 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 958 0 0 0 8 0 0 0 21 0 1 0 465973550 13197312 540 33554432000 4194304 4465733 140734567621824 18446744073709551615 4295918 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 3222 540 256 67 0 345 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 12888

[startup+0.100427 s]
/proc/loadavg: 3.68 3.91 3.80 5/189 2984
/proc/meminfo: memFree=14604644/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=12888 CPUtime=0.09 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 972 0 0 0 9 0 0 0 21 0 1 0 465973550 13197312 547 33554432000 4194304 4465733 140734567621824 18446744073709551615 4296140 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 3222 547 256 67 0 345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12888

[startup+0.300392 s]
/proc/loadavg: 3.68 3.91 3.80 5/189 2984
/proc/meminfo: memFree=14604644/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=13608 CPUtime=0.29 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 1461 0 0 0 29 0 0 0 22 0 1 0 465973550 13934592 658 33554432000 4194304 4465733 140734567621824 18446744073709551615 4270788 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 3402 658 256 67 0 525 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13608

[startup+0.70032 s]
/proc/loadavg: 3.68 3.91 3.80 5/189 2984
/proc/meminfo: memFree=14604644/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=14428 CPUtime=0.69 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 2173 0 0 0 69 0 0 0 24 0 1 0 465973550 14774272 854 33554432000 4194304 4465733 140734567621824 18446744073709551615 4271237 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 3607 854 256 67 0 730 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14428

[startup+1.50116 s]
/proc/loadavg: 3.68 3.91 3.80 5/190 2985
/proc/meminfo: memFree=14588236/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=15656 CPUtime=1.49 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 3061 0 0 0 149 0 0 0 25 0 1 0 465973550 16031744 1044 33554432000 4194304 4465733 140734567621824 18446744073709551615 4270192 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 3914 1044 256 67 0 1037 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15656

[startup+3.10086 s]
/proc/loadavg: 3.68 3.91 3.80 5/190 2985
/proc/meminfo: memFree=14581168/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=21660 CPUtime=3.09 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 4216 0 0 0 309 0 0 0 25 0 1 0 465973550 22179840 1649 33554432000 4194304 4465733 140734567621824 18446744073709551615 4343363 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 5415 1649 272 67 0 2538 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 21660

[startup+6.30024 s]
/proc/loadavg: 3.79 3.93 3.80 5/190 2985
/proc/meminfo: memFree=14571924/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=18340 CPUtime=6.29 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 5397 0 0 0 629 0 0 0 25 0 1 0 465973550 18780160 1746 33554432000 4194304 4465733 140734567621824 18446744073709551615 4270658 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 4585 1746 315 67 0 1708 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18340

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

[startup+6.70116 s]
/proc/loadavg: 3.79 3.93 3.80 5/190 2985
/proc/meminfo: memFree=14567844/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=18340 CPUtime=6.69 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 5397 0 0 0 669 0 0 0 25 0 1 0 465973550 18780160 1746 33554432000 4194304 4465733 140734567621824 18446744073709551615 4271856 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 4585 1746 315 67 0 1708 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 18340

[startup+6.80114 s]
/proc/loadavg: 3.79 3.93 3.80 5/190 2985
/proc/meminfo: memFree=14567844/32950928 swapFree=67087032/67111528
[pid=2984] ppid=2982 vsize=18340 CPUtime=6.79 cores=4,6
/proc/2984/stat : 2984 (SApperloT) R 2982 2984 2352 0 -1 4202496 5397 0 0 0 679 0 0 0 25 0 1 0 465973550 18780160 1746 33554432000 4194304 4465733 140734567621824 18446744073709551615 4270702 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/2984/statm: 4585 1746 315 67 0 1708 0
Current children cumulated CPU time (s) 6.79
Current children cumulated vsize (KiB) 18340

Child status: 20
Real time (s): 6.84923
CPU time (s): 6.84396
CPU user time (s): 6.84196
CPU system time (s): 0.001999
CPU usage (%): 99.923
Max. virtual memory (cumulated for all children) (KiB): 21660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.84196
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= 5402
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= 6
involuntary context switches= 74

runsolver used 0.009998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-23 09:29:25
IDJOB=3261125
IDBENCH=83210
IDSOLVER=1657
FILE ID=node148/3261125-1303543765
RUNJOBID= node148-1303543765-2942
PBS_JOBID= 13143090
Free space on /tmp= 70616 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-10-10-unsat.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3261125-1303543765/watcher-3261125-1303543765 -o /tmp/evaluation-result-3261125-1303543765/solver-3261125-1303543765 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3261125-1303543765.cnf

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

MD5SUM BENCH= 5ad28aa134f570fa0399980e14c0e5d4
RANDOM SEED=2124201305

node148.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		: 2666.854
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	: 5333.70
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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:      14604900 kB
Buffers:       2042112 kB
Cached:       15691008 kB
SwapCached:       5264 kB
Active:        8835356 kB
Inactive:      8952052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      14604900 kB
SwapTotal:    67111528 kB
SwapFree:     67087032 kB
Dirty:            1764 kB
Writeback:           0 kB
AnonPages:       50456 kB
Mapped:          13864 kB
Slab:           493344 kB
PageTables:       5220 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   262240 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= 70616 MiB
End job on node148 at 2011-04-23 09:29:32