Trace number 3261047

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
shortsattime+ 2011-03-02SAT 0.245962 0.246622

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-24-57-sat.cnf
MD5SUM179851d97340610ea74d8d7b3cffb10b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.042993
Satisfiable
(Un)Satisfiability was proved
Number of variables1368
Number of clauses16308
Sum of the clauses size64296
Maximum clause length57
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215732
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5576

Solver Data

0.19/0.24	c 0 clauses are redundant and removed
0.19/0.24	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.24	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.24	c initial seed is 648382541
0.19/0.24	c try=1 flip j=4096 walk=1716 seed 648382558
0.19/0.24	c A solution is found
0.19/0.24	s SATISFIABLE
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-1358 1359 -1360 -1361 -1362 -1363 -1364 -1365 -1366 -1367 -1368 
0.19/0.24	v 0 
0.19/0.24	c Done (mycputime is 0 seconds)

Verifier Data

OK

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-3261047-1303539697/watcher-3261047-1303539697 -o /tmp/evaluation-result-3261047-1303539697/solver-3261047-1303539697 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3261047-1303539697.cnf 648382314 

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: 0.00 0.00 0.00 1/174 4321
/proc/meminfo: memFree=23234908/32951124 swapFree=67051468/67111528
[pid=4321] ppid=4319 vsize=881160 CPUtime=0 cores=5,7
/proc/4321/stat : 4321 (shortsattime+) R 4319 4321 4236 0 -1 4194304 342 0 0 0 0 0 0 0 21 0 1 0 465572622 902307840 286 33554432000 4194304 4228340 140734280632304 18446744073709551615 218370618053 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4321/statm: 220290 287 102 9 0 217447 0

[startup+0.0189891 s]
/proc/loadavg: 0.00 0.00 0.00 1/174 4321
/proc/meminfo: memFree=23234908/32951124 swapFree=67051468/67111528
[pid=4321] ppid=4319 vsize=882608 CPUtime=0.01 cores=5,7
/proc/4321/stat : 4321 (shortsattime+) R 4319 4321 4236 0 -1 4202496 785 0 0 0 1 0 0 0 21 0 1 0 465572622 903790592 728 33554432000 4194304 4228340 140734280632304 18446744073709551615 4206991 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4321/statm: 220652 728 104 9 0 217809 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 882608

[startup+0.100974 s]
/proc/loadavg: 0.00 0.00 0.00 1/174 4321
/proc/meminfo: memFree=23234908/32951124 swapFree=67051468/67111528
[pid=4321] ppid=4319 vsize=882608 CPUtime=0.09 cores=5,7
/proc/4321/stat : 4321 (shortsattime+) R 4319 4321 4236 0 -1 4202496 785 0 0 0 9 0 0 0 21 0 1 0 465572622 903790592 728 33554432000 4194304 4228340 140734280632304 18446744073709551615 4206761 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4321/statm: 220652 728 104 9 0 217809 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 882608

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

[startup+0.200958 s]
/proc/loadavg: 0.00 0.00 0.00 1/174 4321
/proc/meminfo: memFree=23234908/32951124 swapFree=67051468/67111528
[pid=4321] ppid=4319 vsize=882608 CPUtime=0.19 cores=5,7
/proc/4321/stat : 4321 (shortsattime+) R 4319 4321 4236 0 -1 4202496 785 0 0 0 19 0 0 0 22 0 1 0 465572622 903790592 728 33554432000 4194304 4228340 140734280632304 18446744073709551615 4206780 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4321/statm: 220652 728 104 9 0 217809 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 882608

Child status: 10
Real time (s): 0.246622
CPU time (s): 0.245962
CPU user time (s): 0.242963
CPU system time (s): 0.002999
CPU usage (%): 99.7323
Max. virtual memory (cumulated for all children) (KiB): 882608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.242963
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= 1905
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= 2
involuntary context switches= 2

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data

Begin job on node101 at 2011-04-23 08:21:39
IDJOB=3261047
IDBENCH=83208
IDSOLVER=1578
FILE ID=node101/3261047-1303539697
RUNJOBID= node101-1303539692-4257
PBS_JOBID= 13143137
Free space on /tmp= 71616 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-24-57-sat.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3261047-1303539697/watcher-3261047-1303539697 -o /tmp/evaluation-result-3261047-1303539697/solver-3261047-1303539697 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3261047-1303539697.cnf 648382314

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

MD5SUM BENCH= 179851d97340610ea74d8d7b3cffb10b
RANDOM SEED=648382314

node101.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		: 2666.841
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	: 5333.68
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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		: 2666.841
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	: 5332.74
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		: 2666.841
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		: 2666.841
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		: 2666.841
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23235188 kB
Buffers:       2058200 kB
Cached:        7148444 kB
SwapCached:      33708 kB
Active:        6091696 kB
Inactive:      3152520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23235188 kB
SwapTotal:    67111528 kB
SwapFree:     67051468 kB
Dirty:            8416 kB
Writeback:           0 kB
AnonPages:       25148 kB
Mapped:           8556 kB
Slab:           406992 kB
PageTables:       5056 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   188840 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= 71600 MiB
End job on node101 at 2011-04-23 08:21:39