Trace number 1524066

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
Hybrid2 2009-03-22SAT 0.244961 0.247766

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
MD5SUM827e988c6cf21e8a9c90f9f21d3beb6e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.24	c try 1 flip j 236212
0.19/0.24	c A solution is found
0.19/0.24	s SATISFIABLE
0.19/0.24	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 
0.19/0.24	v 0 
0.19/0.24	c Done (mycputime is 0.240 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-1524066-1238600940/watcher-1524066-1238600940 -o /tmp/evaluation-result-1524066-1238600940/solver-1524066-1238600940 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1524066-1238600940.cnf 1236288541 

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: 1.84 1.94 1.81 3/64 19940
/proc/meminfo: memFree=1406920/2055920 swapFree=4179868/4192956
[pid=19940] ppid=19938 vsize=450940 CPUtime=0
/proc/19940/stat : 19940 (Hybrid2) R 19938 19940 18767 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 736986405 461762560 111 1992294400 134512640 135106774 4294956208 18446744073709551615 134524000 0 0 4096 0 0 0 0 17 1 0 0
/proc/19940/statm: 112735 111 53 145 0 111611 0

[startup+0.0749491 s]
/proc/loadavg: 1.84 1.94 1.81 3/64 19940
/proc/meminfo: memFree=1406920/2055920 swapFree=4179868/4192956
[pid=19940] ppid=19938 vsize=454984 CPUtime=0.07
/proc/19940/stat : 19940 (Hybrid2) R 19938 19940 18767 0 -1 4194304 172 0 0 0 7 0 0 0 18 0 1 0 736986405 465903616 156 1992294400 134512640 135106774 4294956208 18446744073709551615 134528661 0 0 4096 0 0 0 0 17 1 0 0
/proc/19940/statm: 113746 156 56 145 0 112622 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 454984

[startup+0.102951 s]
/proc/loadavg: 1.84 1.94 1.81 3/64 19940
/proc/meminfo: memFree=1406920/2055920 swapFree=4179868/4192956
[pid=19940] ppid=19938 vsize=454984 CPUtime=0.1
/proc/19940/stat : 19940 (Hybrid2) R 19938 19940 18767 0 -1 4194304 172 0 0 0 10 0 0 0 18 0 1 0 736986405 465903616 156 1992294400 134512640 135106774 4294956208 18446744073709551615 134526807 0 0 4096 0 0 0 0 17 1 0 0
/proc/19940/statm: 113746 156 56 145 0 112622 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 454984

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

[startup+0.202965 s]
/proc/loadavg: 1.84 1.94 1.81 3/64 19940
/proc/meminfo: memFree=1406920/2055920 swapFree=4179868/4192956
[pid=19940] ppid=19938 vsize=454984 CPUtime=0.19
/proc/19940/stat : 19940 (Hybrid2) R 19938 19940 18767 0 -1 4194304 172 0 0 0 19 0 0 0 18 0 1 0 736986405 465903616 156 1992294400 134512640 135106774 4294956208 18446744073709551615 134527123 0 0 4096 0 0 0 0 17 1 0 0
/proc/19940/statm: 113746 156 56 145 0 112622 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 454984

Child status: 10
Real time (s): 0.247766
CPU time (s): 0.244961
CPU user time (s): 0.243962
CPU system time (s): 0.000999
CPU usage (%): 98.8679
Max. virtual memory (cumulated for all children) (KiB): 454984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.243962
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= 190
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= 1

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node49 at 2009-04-01 17:49:00
IDJOB=1524066
IDBENCH=70753
IDSOLVER=530
FILE ID=node49/1524066-1238600940
PBS_JOBID= 9068316
Free space on /tmp= 66388 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1524066-1238600940/watcher-1524066-1238600940 -o /tmp/evaluation-result-1524066-1238600940/solver-1524066-1238600940 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1524066-1238600940.cnf 1236288541

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

MD5SUM BENCH= 827e988c6cf21e8a9c90f9f21d3beb6e
RANDOM SEED=1236288541

node49.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		: 3000.214
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	: 5931.00
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		: 3000.214
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:       1407400 kB
Buffers:        109012 kB
Cached:         435608 kB
SwapCached:       6452 kB
Active:         220412 kB
Inactive:       333136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1407400 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            4772 kB
Writeback:           0 kB
Mapped:          14624 kB
Slab:            80812 kB
Committed_AS:  2025348 kB
PageTables:       1384 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= 66384 MiB
End job on node49 at 2009-04-01 17:49:00