Trace number 3261478

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
MPhaseSAT 2011-02-15UNSAT 0.436933 0.437923

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 

0.39/0.43	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.39/0.43	c input CNF file=HOME/instance-3261478-1303542475.cnf 
0.39/0.43	c Clause#=171  var#=54  ratio=3 
0.39/0.43	c Simplified clause#=171 
0.39/0.43	c XOR_varElimination deleted var#=0 clauses#=171 
0.39/0.43	c inative var#=0 
0.39/0.43	c free var#=54  
0.39/0.43	c local search off 
0.39/0.43	c height=0 age=0 
0.39/0.43	c 
0.39/0.43	s UNSATISFIABLE
0.39/0.43	c 
0.39/0.43	c  Running time=0.435934

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-3261478-1303542475/watcher-3261478-1303542475 -o /tmp/evaluation-result-3261478-1303542475/solver-3261478-1303542475 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3261478-1303542475.cnf 

running on 2 cores: 5,7

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: 1.03 2.55 3.20 3/184 24732
/proc/meminfo: memFree=19954328/32951124 swapFree=67111524/67111528
[pid=24732] ppid=24730 vsize=3036 CPUtime=0 cores=5,7
/proc/24732/stat : 24732 (MPhaseSAT) R 24730 24732 24286 0 -1 4202496 377 0 0 0 0 0 0 0 22 0 1 0 446663674 3108864 317 33554432000 134512640 134731564 4294608112 18446744073709551615 134669448 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24732/statm: 759 317 269 54 0 69 0

[startup+0.0111121 s]
/proc/loadavg: 1.03 2.55 3.20 3/184 24732
/proc/meminfo: memFree=19954328/32951124 swapFree=67111524/67111528
[pid=24732] ppid=24730 vsize=3036 CPUtime=0 cores=5,7
/proc/24732/stat : 24732 (MPhaseSAT) R 24730 24732 24286 0 -1 4202496 387 0 0 0 0 0 0 0 22 0 1 0 446663674 3108864 327 33554432000 134512640 134731564 4294608112 18446744073709551615 134656009 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24732/statm: 759 327 269 54 0 69 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3036

[startup+0.10013 s]
/proc/loadavg: 1.03 2.55 3.20 3/184 24732
/proc/meminfo: memFree=19954328/32951124 swapFree=67111524/67111528
[pid=24732] ppid=24730 vsize=3424 CPUtime=0.09 cores=5,7
/proc/24732/stat : 24732 (MPhaseSAT) R 24730 24732 24286 0 -1 4202496 483 0 0 0 9 0 0 0 22 0 1 0 446663674 3506176 423 33554432000 134512640 134731564 4294608112 18446744073709551615 134721203 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24732/statm: 856 423 269 54 0 166 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3424

[startup+0.300094 s]
/proc/loadavg: 1.03 2.55 3.20 3/184 24732
/proc/meminfo: memFree=19954328/32951124 swapFree=67111524/67111528
[pid=24732] ppid=24730 vsize=3672 CPUtime=0.29 cores=5,7
/proc/24732/stat : 24732 (MPhaseSAT) R 24730 24732 24286 0 -1 4202496 542 0 0 0 29 0 0 0 23 0 1 0 446663674 3760128 482 33554432000 134512640 134731564 4294608112 18446744073709551615 134659313 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24732/statm: 918 482 269 54 0 228 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3672

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

[startup+0.401079 s]
/proc/loadavg: 1.03 2.55 3.20 3/184 24732
/proc/meminfo: memFree=19954328/32951124 swapFree=67111524/67111528
[pid=24732] ppid=24730 vsize=3700 CPUtime=0.39 cores=5,7
/proc/24732/stat : 24732 (MPhaseSAT) R 24730 24732 24286 0 -1 4202496 563 0 0 0 39 0 0 0 24 0 1 0 446663674 3788800 491 33554432000 134512640 134731564 4294608112 18446744073709551615 134634471 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24732/statm: 925 491 269 54 0 235 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 3700

Child status: 20
Real time (s): 0.437923
CPU time (s): 0.436933
CPU user time (s): 0.433934
CPU system time (s): 0.002999
CPU usage (%): 99.7739
Max. virtual memory (cumulated for all children) (KiB): 3700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.433934
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 574
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= 3

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node144 at 2011-04-23 09:07:55
IDJOB=3261478
IDBENCH=83232
IDSOLVER=1520
FILE ID=node144/3261478-1303542475
RUNJOBID= node144-1303542475-24676
PBS_JOBID= 13143094
Free space on /tmp= 72192 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-6-9-unsat.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3261478-1303542475/watcher-3261478-1303542475 -o /tmp/evaluation-result-3261478-1303542475/solver-3261478-1303542475 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3261478-1303542475.cnf

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

MD5SUM BENCH= bfd2524dbb7ffd28476c17fbc77b8353
RANDOM SEED=389412984

node144.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		: 2666.850
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		: 2666.850
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	: 5226.16
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		: 2666.850
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		: 2666.850
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	: 5332.83
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		: 2666.850
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		: 2666.850
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	: 5332.82
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		: 2666.850
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		: 2666.850
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      19954608 kB
Buffers:       2151916 kB
Cached:       10246556 kB
SwapCached:          4 kB
Active:        3249340 kB
Inactive:      9215424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19954608 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             808 kB
Writeback:           0 kB
AnonPages:       66520 kB
Mapped:          16420 kB
Slab:           467372 kB
PageTables:       4732 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   231004 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= 72192 MiB
End job on node144 at 2011-04-23 09:07:56