Trace number 1738113

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
SATzilla2009_R 2009-03-22SAT 0.044992 0.0436501

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-20-152-18-95.cnf
MD5SUMc56a1400f0bd9306a380dfa6653baa1d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.038993
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses15466
Sum of the clauses size31256
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215448
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 518

Solver Data 

0.00/0.04	c SATzilla is building models for class 1
0.00/0.04	c run presolver SATenstein for 30 seconds ... 
0.00/0.04	c Bin: Executing SATenstein
0.00/0.04	c spawning binary file with 30 seconds ...
0.00/0.04	c child exited successfully
0.00/0.04	c SATenstein returned code 10.
0.00/0.04	s SATISFIABLE
0.00/0.04	v  1 -2 -3 -4 -5 -6 -7 -8 -9 -10
0.00/0.04	v  -11 -12 -13 -14 -15 -16 -17 -18 -19 -20
0.00/0.04	v  -21 22 -23 -24 -25 -26 -27 -28 -29 -30
0.00/0.04	v  -31 -32 -33 -34 -35 -36 -37 -38 -39 -40
0.00/0.04	v  -41 -42 43 -44 -45 -46 -47 -48 -49 -50
0.00/0.04	v  -51 -52 -53 -54 -55 -56 -57 -58 -59 -60
0.00/0.04	v  -61 -62 -63 64 -65 -66 -67 -68 -69 -70
0.00/0.04	v  -71 -72 -73 -74 -75 -76 -77 -78 -79 -80
0.00/0.04	v  -81 -82 -83 -84 85 -86 -87 -88 -89 -90
0.00/0.04	v  -91 -92 -93 -94 -95 -96 -97 -98 -99 -100
0.00/0.04	v  -101 -102 -103 -104 -105 -106 -107 108 -109 -110
0.00/0.04	v  -111 -112 -113 -114 -115 -116 -117 -118 -119 -120
0.00/0.04	v  -121 -122 -123 -124 -125 -126 -127 -128 129 -130
0.00/0.04	v  -131 -132 -133 -134 -135 -136 -137 -138 -139 -140
0.00/0.04	v  -141 -142 -143 -144 -145 -146 -147 -148 -149 150
0.00/0.04	v  -151 -152 -153 -154 -155 -156 -157 -158 -159 -160
0.00/0.04	v  -161 -162 -163 -164 -165 -166 -167 -168 -169 -170
0.00/0.04	v  171 -172 -173 -174 -175 -176 -177 -178 -179 -180
0.00/0.04	v  -181 -182 -183 -184 -185 -186 -187 -188 -189 -190
0.00/0.04	v  -191 192 -193 -194 -195 -196 -197 -198 -199 -200
0.00/0.04	v  -201 -202 -203 -204 -205 -206 -207 -208 -209 -210
0.00/0.04	v  -211 -212 213 -214 -215 -216 -217 -218 -219 -220
0.00/0.04	v  -221 -222 -223 -224 -225 -226 -227 -228 -229 -230
0.00/0.04	v  -231 -232 -233 234 -235 -236 -237 -238 -239 -240
0.00/0.04	v  -241 -242 -243 -244 -245 -246 -247 -248 -249 -250
0.00/0.04	v  -251 -252 -253 -254 255 -256 -257 -258 -259 -260
0.00/0.04	v  -261 -262 -263 -264 -265 -266 -267 -268 -269 -270
0.00/0.04	v  -271 -272 -273 -274 -275 276 -277 -278 -279 -280
0.00/0.04	v  -281 -282 -283 -284 -285 -286 -287 -288 -289 -290
0.00/0.04	v  -291 -292 -293 -294 -295 -296 297 -298 -299 -300
0.00/0.04	v  -301 -302 -303 -304 -305 -306 -307 -308 -309 -310
0.00/0.04	v  -311 -312 -313 -314 -315 -316 -317 318 -319 -320
0.00/0.04	v  -321 -322 -323 -324 -325 -326 -327 -328 -329 -330
0.00/0.04	v  -331 -332 -333 -334 -335 -336 -337 -338 339 -340
0.00/0.04	v  -341 -342 -343 -344 -345 -346 -347 -348 -349 -350
0.00/0.04	v  -351 -352 -353 -354 -355 -356 -357 -358 -359 360
0.00/0.04	v  0
0.00/0.04	c SATZILLA_TIME=0.030000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1738113-1240835758/watcher-1738113-1240835758 -o /tmp/evaluation-result-1738113-1240835758/solver-1738113-1240835758 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1738113-1240835758.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5493
/proc/meminfo: memFree=1663352/2055924 swapFree=4180792/4192956
[pid=5493] ppid=5491 vsize=2056 CPUtime=0
/proc/5493/stat : 5493 (SATzilla2009_R) R 5491 5493 5333 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 111610173 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 1 0 0
/proc/5493/statm: 514 112 96 399 0 111 0
[pid=5494] ppid=5493 vsize=6508 CPUtime=0
/proc/5494/stat : 5494 (SATenstein) R 5493 5493 5333 0 -1 4194304 279 0 0 0 0 0 0 0 18 0 1 0 111610173 6664192 260 1992294400 134512640 134854740 4294955344 18446744073709551615 134782527 0 0 8392704 0 0 0 0 17 1 0 0
/proc/5494/statm: 1627 260 151 83 0 1188 0

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

Child status: 10
Real time (s): 0.0436501
CPU time (s): 0.044992
CPU user time (s): 0.036994
CPU system time (s): 0.007998
CPU usage (%): 103.074
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.036994
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 786
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= 4
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node6 at 2009-04-27 14:35:58
IDJOB=1738113
IDBENCH=71801
IDSOLVER=526
FILE ID=node6/1738113-1240835758
PBS_JOBID= 9187493
Free space on /tmp= 66340 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-20-152-18-95.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738113-1240835758/watcher-1738113-1240835758 -o /tmp/evaluation-result-1738113-1240835758/solver-1738113-1240835758 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1738113-1240835758.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c56a1400f0bd9306a380dfa6653baa1d
RANDOM SEED=625041095

node6.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1663896 kB
Buffers:         56632 kB
Cached:         258440 kB
SwapCached:       6024 kB
Active:         163196 kB
Inactive:       160304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1663896 kB
SwapTotal:     4192956 kB
SwapFree:      4180792 kB
Dirty:           31628 kB
Writeback:           0 kB
Mapped:          14060 kB
Slab:            54580 kB
Committed_AS:   531456 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66308 MiB
End job on node6 at 2009-04-27 14:35:58