Trace number 1524034

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
NCVWr 2009-03-22SAT 0.618905 0.619703

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1841979702-078.cnf
MD5SUM53069fa4d3b9f0f792df2e9bdae5662b
Bench CategoryRANDOM (random 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 variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.60/0.61	c try 1 flip j 425443
0.60/0.61	c A solution is found
0.60/0.61	s SATISFIABLE
0.60/0.61	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 -365 366 -367 368 369 370 371 -372 -373 -374 375 -376 -377 -378 -379 -380 
0.60/0.61	v 0 
0.60/0.61	c Done (mycputime is 0.610 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1524034-1238598443/watcher-1524034-1238598443 -o /tmp/evaluation-result-1524034-1238598443/solver-1524034-1238598443 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1524034-1238598443.cnf 1842013122 

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: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=411880 CPUtime=0
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1132510074 421765120 121 1992294400 134512640 135113558 4294956224 18446744073709551615 134526271 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 102970 121 55 146 0 101845 0

[startup+0.0777361 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=415932 CPUtime=0.07
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 194 0 0 0 7 0 0 0 18 0 1 0 1132510074 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134531602 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 415932

[startup+0.101737 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=415932 CPUtime=0.1
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 194 0 0 0 10 0 0 0 18 0 1 0 1132510074 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134534151 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 415932

[startup+0.301759 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=415932 CPUtime=0.3
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 194 0 0 0 30 0 0 0 19 0 1 0 1132510074 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134534115 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 415932

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

[startup+0.501781 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=415932 CPUtime=0.5
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 194 0 0 0 50 0 0 0 20 0 1 0 1132510074 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134520785 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 415932

[startup+0.601793 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18787
/proc/meminfo: memFree=1383392/2055920 swapFree=4171920/4192956
[pid=18787] ppid=18785 vsize=415932 CPUtime=0.6
/proc/18787/stat : 18787 (NCVWr) R 18785 18787 18167 0 -1 4194304 194 0 0 0 60 0 0 0 21 0 1 0 1132510074 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134531934 0 0 4096 0 0 0 0 17 1 0 0
/proc/18787/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.6
Current children cumulated vsize (KiB) 415932

Child status: 10
Real time (s): 0.619703
CPU time (s): 0.618905
CPU user time (s): 0.618905
CPU system time (s): 0
CPU usage (%): 99.8713
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.618905
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 209
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 0.001999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-01 17:07:24
IDJOB=1524034
IDBENCH=70742
IDSOLVER=531
FILE ID=node28/1524034-1238598443
PBS_JOBID= 9062234
Free space on /tmp= 66300 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1841979702-078.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1524034-1238598443/watcher-1524034-1238598443 -o /tmp/evaluation-result-1524034-1238598443/solver-1524034-1238598443 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1524034-1238598443.cnf 1842013122

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

MD5SUM BENCH= 53069fa4d3b9f0f792df2e9bdae5662b
RANDOM SEED=1842013122

node28.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		: 3000.212
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		: 3000.212
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:      2055920 kB
MemFree:       1383872 kB
Buffers:        113804 kB
Cached:         443528 kB
SwapCached:      14208 kB
Active:         218476 kB
Inactive:       356044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1383872 kB
SwapTotal:     4192956 kB
SwapFree:      4171920 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          17860 kB
Slab:            83340 kB
Committed_AS:  2990184 kB
PageTables:       1428 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66296 MiB
End job on node28 at 2009-04-01 17:07:24