Trace number 3427202

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
sattime 2011-03-02SAT 0.299953 0.301854

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-14-26-sat.cnf
MD5SUM1e53251276ed6dee048eca4aa337d77b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables364
Number of clauses2562
Sum of the clauses size9828
Maximum clause length26
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22366
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5196

Solver Data 

0.29/0.30	c 0 clauses are redundant and removed
0.29/0.30	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.29/0.30	c 0 vars are fixed and 0 clauses are removed after lookahead
0.29/0.30	c initial seed is 1835155808
0.29/0.30	c try=1 flip j=220289 walk=108389 seed 1835155825
0.29/0.30	c A solution is found
0.29/0.30	s SATISFIABLE
0.29/0.30	v 1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 38 -39 -40 -41 -42 -43 -44 -45 -46 47 -48 -49 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59 -60 61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80 -81 -82 -83 84 -85 -86 -87 -88 -89 90 -91 -92 -93 -94 -95 -96 -97 -98 -99 -100 -101 102 -103 -104 -105 -106 -107 -108 -109 -110 -111 -112 -113 -114 -115 -116 -117 -118 -119 -120 -121 -122 -123 124 -125 -126 -127 -128 -129 -130 -131 -132 -133 -134 -135 -136 137 -138 -139 -140 -141 -142 -143 -144 -145 -146 -147 -148 -149 150 -151 -152 -153 -154 -155 -156 -157 -158 -159 -160 161 -162 -163 -164 -165 -166 -167 -168 -169 -170 -171 -172 173 -174 -175 -176 -177 -178 -179 -180 -181 -182 -183 -184 -185 -186 187 -188 -189 -190 -191 -192 -193 -194 -195 -196 -197 -198 199 -200 -201 -202 -203 -204 -205 -206 -207 -208 -209 -210 -211 212 -213 -214 -215 -216 -217 -218 -219 -220 -221 -222 -223 -224 -225 -226 227 -228 -229 -230 -231 -232 -233 -234 -235 -236 -237 -238 239 -240 -241 -242 -243 -244 -245 -246 -247 -248 -249 -250 -251 -252 -253 -254 -255 -256 -257 -258 -259 -260 -261 -262 -263 264 -265 -266 -267 -268 -269 -270 -271 -272 -273 -274 275 -276 -277 -278 -279 -280 -281 282 -283 -284 -285 -286 -287 -288 -289 -290 -291 -292 -293 -294 -295 -296 -297 -298 -299 -300 -301 -302 -303 -304 -305 306 -307 -308 -309 -310 -311 312 -313 -314 -315 -316 -317 -318 -319 -320 -321 -322 -323 -324 -325 -326 -327 -328 -329 330 -331 -332 -333 -334 -335 -336 -337 -338 339 -340 -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 -351 -352 -353 -354 -355 -356 -357 -358 -359 -360 -361 -362 363 -364 
0.29/0.30	v 0 
0.29/0.30	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: 961)

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-3427202-1306766778/watcher-3427202-1306766778 -o /tmp/evaluation-result-3427202-1306766778/solver-3427202-1306766778 -C 5000 -W 5100 -M 15500 sattime HOME/instance-3427202-1306766778.cnf 1835155808 

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: 2.00 2.01 2.00 2/481 15320
/proc/meminfo: memFree=11911388/32951124 swapFree=38422276/67111528
[pid=15320] ppid=15318 vsize=990400 CPUtime=0 cores=0,2,4,6
/proc/15320/stat : 15320 (sattime) R 15318 15320 15054 0 -1 4202496 287 0 0 0 0 0 0 0 25 0 1 0 788280163 1014169600 231 33554432000 4194304 4228548 140735131299872 18446744073709551615 4207161 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15320/statm: 247600 231 104 9 0 244757 0

[startup+0.044087 s]
/proc/loadavg: 2.00 2.01 2.00 2/481 15320
/proc/meminfo: memFree=11911388/32951124 swapFree=38422276/67111528
[pid=15320] ppid=15318 vsize=990800 CPUtime=0.04 cores=0,2,4,6
/proc/15320/stat : 15320 (sattime) R 15318 15320 15054 0 -1 4202496 461 0 0 0 4 0 0 0 25 0 1 0 788280163 1014579200 404 33554432000 4194304 4228548 140735131299872 18446744073709551615 4217259 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15320/statm: 247700 404 116 9 0 244857 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 990800

[startup+0.101074 s]
/proc/loadavg: 2.00 2.01 2.00 2/481 15320
/proc/meminfo: memFree=11911388/32951124 swapFree=38422276/67111528
[pid=15320] ppid=15318 vsize=990800 CPUtime=0.09 cores=0,2,4,6
/proc/15320/stat : 15320 (sattime) R 15318 15320 15054 0 -1 4202496 461 0 0 0 9 0 0 0 25 0 1 0 788280163 1014579200 404 33554432000 4194304 4228548 140735131299872 18446744073709551615 4217259 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15320/statm: 247700 404 116 9 0 244857 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990800

[startup+0.301025 s]
/proc/loadavg: 2.00 2.01 2.00 2/481 15320
/proc/meminfo: memFree=11911388/32951124 swapFree=38422276/67111528
[pid=15320] ppid=15318 vsize=990804 CPUtime=0.29 cores=0,2,4,6
/proc/15320/stat : 15320 (sattime) R 15318 15320 15054 0 -1 4202496 462 0 0 0 29 0 0 0 25 0 1 0 788280163 1014583296 405 33554432000 4194304 4228548 140735131299872 18446744073709551615 212436016896 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15320/statm: 247701 405 116 9 0 244858 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 990804

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

Child status: 10
Real time (s): 0.301854
CPU time (s): 0.299953
CPU user time (s): 0.298954
CPU system time (s): 0.000999
CPU usage (%): 99.3702
Max. virtual memory (cumulated for all children) (KiB): 990804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.298954
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 465
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 0.007998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node102 at 2011-05-30 16:46:18
IDJOB=3427202
IDBENCH=83219
IDSOLVER=1923
FILE ID=node102/3427202-1306766778
RUNJOBID= node102-1306761773-15072
PBS_JOBID= 13475022
Free space on /tmp= 58860 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-14-26-sat.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427202-1306766778/watcher-3427202-1306766778 -o /tmp/evaluation-result-3427202-1306766778/solver-3427202-1306766778 -C 5000 -W 5100 -M 15500  sattime HOME/instance-3427202-1306766778.cnf 1835155808

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

MD5SUM BENCH= 1e53251276ed6dee048eca4aa337d77b
RANDOM SEED=1835155808

node102.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5226.15
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      11911544 kB
Buffers:        255116 kB
Cached:       16393440 kB
SwapCached:      76340 kB
Active:       15639016 kB
Inactive:      4726860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      11911544 kB
SwapTotal:    67111528 kB
SwapFree:     38422276 kB
Dirty:           15696 kB
Writeback:          28 kB
AnonPages:     3652624 kB
Mapped:          13748 kB
Slab:           505752 kB
PageTables:      99704 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 136460692 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= 58852 MiB
End job on node102 at 2011-05-30 16:46:19