Trace number 1784245

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
MXC 2009-03-10SAT 1.34879 1.34963

General information on the benchmark

NameCRAFTED/modcircuits/
mod5block_1var_7gates.cnf
MD5SUM7bf73d9c0408bae76b2e1355fb2178d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.38494
Satisfiable
(Un)Satisfiability was proved
Number of variables353
Number of clauses46967
Sum of the clauses size271042
Maximum clause length23
Minimum clause length1
Number of clauses of size 164
Number of clauses of size 21176
Number of clauses of size 31
Number of clauses of size 41349
Number of clauses of size 53139
Number of clauses of size over 541238

Solver Data 

1.29/1.34	c starting MXC with:
1.29/1.34	c cnf_path = HOME/instance-1784245-1241926503.cnf
1.29/1.34	c restart_strategy = auto
1.29/1.34	c sign_strategy = cached
1.29/1.34	c use_preprocessing = -1
1.29/1.34	c output_implicant = 1
1.29/1.34	c timeout_seconds = 0
1.29/1.34	c running SatELite... done
1.29/1.34	c 53 vars eliminated
1.29/1.34	c received 70 units and 12348 clauses from SatELite
1.29/1.34	c 122 assignments made, starting to guess now
1.29/1.34	c ===================================[MXC]=====================================
1.29/1.34	c | Conflicts |                Clause Statistics                   |   Vars   |
1.29/1.34	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
1.29/1.34	c =============================================================================
1.29/1.34	c |         0 |       0     571    11777        0        0     nan |      353 |
1.29/1.34	c |       100 |       0     572    11777       99     1050    12.6 |      231 |
1.29/1.34	c |       210 |       0     575    11777      206     1105    13.5 |      231 |
1.29/1.34	c |       441 |       0     553    11777      435     1220    14.8 |      230 |
1.29/1.34	c |       805 |       0     552    11663      795     1402    15.3 |      229 |
1.29/1.34	c |      1315 |       0     552    11663     1305     1657    16.8 |      229 |
1.29/1.34	c |      1986 |       0     553    11663     1975     1993    18.3 |      229 |
1.29/1.34	c |      2834 |       0     553    11663     1827     2417    20.2 |      229 |
1.29/1.34	c |      3876 |       0     554    11663     2867     2938    20.0 |      228 |
1.29/1.34	c |      5132 |       0     559    11663     2613     3566    16.9 |      228 |
1.29/1.34	c |      6623 |       0     556    11549     4103     4311    17.1 |      228 |
1.29/1.34	c |      8373 |       0     557    11549     3591     5186    16.8 |      228 |
1.29/1.34	c |     10408 |       0     557    11549     5626     5746    17.7 |      228 |
1.29/1.34	c |     12756 |       0     535    11549     5087     6030    16.2 |      227 |
1.29/1.34	c |     15449 |       0     535    11549     4762     6208    16.5 |      227 |
1.29/1.34	c |     18521 |       0     535    11549     4659     6476    17.9 |      227 |
1.29/1.34	c |     20163 |       0     535    11549     6301     6605    18.0 |      227 |
1.29/1.34	c ----- stats for thread 0 -----
1.29/1.34	c restarts: 15
1.29/1.34	c decisions: 29097
1.29/1.34	c propagations: 526577
1.29/1.34	c conflicts: 20163
1.29/1.34	c 1.346s elapsed
1.29/1.34	s SATISFIABLE
1.29/1.34	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 0

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-1784245-1241926503/watcher-1784245-1241926503 -o /tmp/evaluation-result-1784245-1241926503/solver-1784245-1241926503 -C 5000 -W 6000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1784245-1241926503.cnf 

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): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27453
/proc/meminfo: memFree=1704432/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=2232 CPUtime=0
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 447 0 0 0 0 0 0 0 18 0 1 0 220683768 2285568 433 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 558 433 54 166 0 389 0

[startup+0.0887549 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27453
/proc/meminfo: memFree=1704432/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=4876 CPUtime=0.08
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1402 0 0 0 8 0 0 0 18 0 1 0 220683768 4993024 1074 1992294400 134512640 135192793 4294956224 18446744073709551615 134564003 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1219 1074 56 166 0 1050 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4876

[startup+0.101755 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27453
/proc/meminfo: memFree=1704432/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=4876 CPUtime=0.09
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1402 0 0 0 9 0 0 0 18 0 1 0 220683768 4993024 1074 1992294400 134512640 135192793 4294956224 18446744073709551615 134563527 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1219 1074 56 166 0 1050 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4876

[startup+0.301773 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27453
/proc/meminfo: memFree=1704432/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=5140 CPUtime=0.29
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1471 0 0 0 29 0 0 0 19 0 1 0 220683768 5263360 1143 1992294400 134512640 135192793 4294956224 18446744073709551615 134573724 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1285 1143 56 166 0 1116 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5140

[startup+0.701809 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27453
/proc/meminfo: memFree=1704432/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=5080 CPUtime=0.69
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1541 0 0 0 69 0 0 0 23 0 1 0 220683768 5201920 1123 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1270 1123 73 166 0 1101 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5080

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

[startup+1.10585 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 27454
/proc/meminfo: memFree=1699816/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=5480 CPUtime=1.09
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1650 0 0 0 109 0 0 0 25 0 1 0 220683768 5611520 1232 1992294400 134512640 135192793 4294956224 18446744073709551615 134534170 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1370 1232 73 166 0 1201 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 5480

[startup+1.30187 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 27454
/proc/meminfo: memFree=1699816/2055920 swapFree=4110764/4192956
[pid=27453] ppid=27451 vsize=5624 CPUtime=1.29
/proc/27453/stat : 27453 (mxc-sat09) R 27451 27453 24021 0 -1 4194304 1698 0 0 0 129 0 0 0 25 0 1 0 220683768 5758976 1280 1992294400 134512640 135192793 4294956224 18446744073709551615 134551008 0 0 4096 0 0 0 0 17 1 0 0
/proc/27453/statm: 1406 1280 73 166 0 1237 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 5624

Child status: 10
Real time (s): 1.34963
CPU time (s): 1.34879
CPU user time (s): 1.3398
CPU system time (s): 0.008998
CPU usage (%): 99.938
Max. virtual memory (cumulated for all children) (KiB): 5624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3398
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1705
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= 3

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node14 at 2009-05-10 05:35:03
IDJOB=1784245
IDBENCH=71137
IDSOLVER=613
FILE ID=node14/1784245-1241926503
PBS_JOBID= 9264907
Free space on /tmp= 66016 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/modcircuits/mod5block_1var_7gates.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784245-1241926503/watcher-1784245-1241926503 -o /tmp/evaluation-result-1784245-1241926503/solver-1784245-1241926503 -C 5000 -W 6000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1784245-1241926503.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7bf73d9c0408bae76b2e1355fb2178d8
RANDOM SEED=900082277

node14.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		: 3000.256
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		: 3000.256
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:       1704848 kB
Buffers:         54788 kB
Cached:         150348 kB
SwapCached:      77132 kB
Active:         103104 kB
Inactive:       181160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1704848 kB
SwapTotal:     4192956 kB
SwapFree:      4110764 kB
Dirty:            2036 kB
Writeback:           0 kB
Mapped:          13548 kB
Slab:            52704 kB
Committed_AS:   675108 kB
PageTables:       1448 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= 66016 MiB
End job on node14 at 2009-05-10 05:35:04