Trace number 1728154

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 13.174 13.1787

General information on the benchmark

Namecrafted/Hard/contest05/others/
mod2c-rand3bip-sat-220-2.sat05-2489.reshuffled-07.cnf
MD5SUM42a2d57c47222c3ed0e0546d3518a54d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark13.174
Satisfiable
(Un)Satisfiability was proved
Number of variables311
Number of clauses2200
Sum of the clauses size9712
Maximum clause length6
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 41352
Number of clauses of size 5784
Number of clauses of size over 564

Solver Data 

13.09/13.17	c starting MXC with:
13.09/13.17	c cnf_path = HOME/instance-1728154-1240733467.cnf
13.09/13.17	c restart_strategy = auto
13.09/13.17	c sign_strategy = cached
13.09/13.17	c use_preprocessing = -1
13.09/13.17	c output_implicant = 1
13.09/13.17	c timeout_seconds = 0
13.09/13.17	c running SatELite... done
13.09/13.17	c 1 vars eliminated
13.09/13.17	c received 0 units and 1514 clauses from SatELite
13.09/13.17	c 0 assignments made, starting to guess now
13.09/13.17	c ===================================[MXC]=====================================
13.09/13.17	c | Conflicts |                Clause Statistics                   |   Vars   |
13.09/13.17	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
13.09/13.17	c =============================================================================
13.09/13.17	c |         0 |       0       0     1514        0        0     nan |      311 |
13.09/13.17	c |       100 |       0       2     1514       98     1050     8.0 |      311 |
13.09/13.17	c |       210 |       0       2     1514      208     1105     8.0 |      311 |
13.09/13.17	c |       441 |       0       3     1514      438     1220     8.3 |      311 |
13.09/13.17	c |       805 |       0       3     1514      802     1402    10.7 |      311 |
13.09/13.17	c |      1315 |       0       3     1514     1312     1609    12.2 |      311 |
13.09/13.17	c |      1986 |       0       4     1514     1135     1754    14.1 |      311 |
13.09/13.17	c |      2834 |       0       4     1514     1046     1894    13.9 |      311 |
13.09/13.17	c |      3876 |       0       4     1514     1083     2031    14.7 |      311 |
13.09/13.17	c |      5132 |       0       4     1514     1274     2163    15.0 |      311 |
13.09/13.17	c |      6623 |       0       4     1514     1648     2292    16.5 |      311 |
13.09/13.17	c |      8373 |       0       4     1514     2228     2419    18.2 |      311 |
13.09/13.17	c |     10408 |       0       4     1514     1802     2543    16.9 |      311 |
13.09/13.17	c |     12756 |       0       4     1514     1541     2665    16.2 |      311 |
13.09/13.17	c |     15449 |       0       4     1514     1492     2786    14.0 |      311 |
13.09/13.17	c |     18521 |       0       4     1514     1698     2906    14.7 |      311 |
13.09/13.17	c |     22010 |       0       4     1514     2213     3025    16.2 |      311 |
13.09/13.17	c |     25958 |       0       4     1514     3086     3144    17.4 |      311 |
13.09/13.17	c |     30411 |       0       4     1514     2758     3262    16.7 |      311 |
13.09/13.17	c |     35419 |       0       4     1514     2795     3381    16.3 |      311 |
13.09/13.17	c |     41038 |       0       4     1514     3274     3499    16.3 |      311 |
13.09/13.17	c |     47329 |       0       4     1514     2455     3618    15.9 |      311 |
13.09/13.17	c |     54360 |       0       4     1514     2126     3737    14.9 |      311 |
13.09/13.17	c |     62205 |       0       4     1514     2359     3857    15.0 |      311 |
13.09/13.17	c |     70945 |       0       4     1514     3265     3978    16.4 |      311 |
13.09/13.17	c |     80669 |       0       4     1514     2909     4099    17.1 |      311 |
13.09/13.17	c |     91476 |       0       4     1514     3322     4222    16.5 |      311 |
13.09/13.17	c |    103474 |       0       4     1514     2458     4346    16.4 |      311 |
13.09/13.17	c |    116782 |       0       4     1514     2525     4471    15.9 |      311 |
13.09/13.17	c |    131532 |       0       4     1514     3673     4597    17.3 |      311 |
13.09/13.17	c |    147868 |       0       4     1514     3701     4726    17.2 |      311 |
13.09/13.17	c |    165948 |       0       4     1514     2621     4855    15.3 |      311 |
13.09/13.17	c |    185947 |       0       4     1514     2931     4987    15.7 |      311 |
13.09/13.17	c |    208057 |       0       4     1514     4834     5120    17.1 |      311 |
13.09/13.17	c |    232489 |       0       4     1514     3335     5255    16.7 |      311 |
13.09/13.17	c |    237148 |       0       4     1514     2724     5280    15.1 |      311 |
13.09/13.17	c ----- stats for thread 0 -----
13.09/13.17	c restarts: 20
13.09/13.17	c decisions: 275496
13.09/13.17	c propagations: 13324075
13.09/13.17	c conflicts: 237148
13.09/13.17	c 13.177s elapsed
13.09/13.17	s SATISFIABLE
13.09/13.17	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 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-1728154-1240733467/watcher-1728154-1240733467 -o /tmp/evaluation-result-1728154-1240733467/solver-1728154-1240733467 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1728154-1240733467.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 0.97 0.98 2/64 28424
/proc/meminfo: memFree=1568504/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=1112 CPUtime=0
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 101380657 1138688 135 1992294400 134512640 135192793 4294956224 18446744073709551615 134565296 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 278 135 56 166 0 109 0

[startup+0.104877 s]
/proc/loadavg: 0.99 0.97 0.98 2/64 28424
/proc/meminfo: memFree=1568504/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=1508 CPUtime=0.1
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 287 0 0 0 10 0 0 0 18 0 1 0 101380657 1544192 273 1992294400 134512640 135192793 4294956224 18446744073709551615 134533909 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 377 273 73 166 0 208 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1508

[startup+0.201893 s]
/proc/loadavg: 0.99 0.97 0.98 2/64 28424
/proc/meminfo: memFree=1568504/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=1640 CPUtime=0.19
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 319 0 0 0 19 0 0 0 19 0 1 0 101380657 1679360 305 1992294400 134512640 135192793 4294956224 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 410 305 73 166 0 241 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1640

[startup+0.301911 s]
/proc/loadavg: 0.99 0.97 0.98 2/64 28424
/proc/meminfo: memFree=1568504/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=1772 CPUtime=0.29
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 330 0 0 0 29 0 0 0 19 0 1 0 101380657 1814528 316 1992294400 134512640 135192793 4294956224 18446744073709551615 134552427 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 443 316 73 166 0 274 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1772

[startup+0.701981 s]
/proc/loadavg: 0.99 0.97 0.98 2/64 28424
/proc/meminfo: memFree=1568504/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=1904 CPUtime=0.69
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 375 0 0 0 69 0 0 0 23 0 1 0 101380657 1949696 361 1992294400 134512640 135192793 4294956224 18446744073709551615 134533920 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 476 361 73 166 0 307 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1904

[startup+1.50112 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1567216/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=2180 CPUtime=1.49
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 437 0 0 0 149 0 0 0 25 0 1 0 101380657 2232320 423 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 545 423 73 166 0 376 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2180

[startup+3.1014 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1566832/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=2448 CPUtime=3.09
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 516 0 0 0 309 0 0 0 25 0 1 0 101380657 2506752 502 1992294400 134512640 135192793 4294956224 18446744073709551615 134533236 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 612 502 73 166 0 443 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2448

[startup+6.30196 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1566256/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=3012 CPUtime=6.29
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 630 0 0 0 629 0 0 0 25 0 1 0 101380657 3084288 616 1992294400 134512640 135192793 4294956224 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 753 616 73 166 0 584 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3012

[startup+12.7011 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1565552/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=3564 CPUtime=12.69
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 765 0 0 0 1269 0 0 0 25 0 1 0 101380657 3649536 751 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 891 751 73 166 0 722 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3564

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

[startup+12.8011 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1565552/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=3564 CPUtime=12.79
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 765 0 0 0 1279 0 0 0 25 0 1 0 101380657 3649536 751 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 891 751 73 166 0 722 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 3564

[startup+13.0011 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1565552/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=3564 CPUtime=12.99
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 766 0 0 0 1299 0 0 0 25 0 1 0 101380657 3649536 752 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 891 752 73 166 0 722 0
Current children cumulated CPU time (s) 12.99
Current children cumulated vsize (KiB) 3564

[startup+13.1012 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 28425
/proc/meminfo: memFree=1565552/2055920 swapFree=4181848/4192956
[pid=28424] ppid=28422 vsize=3564 CPUtime=13.09
/proc/28424/stat : 28424 (mxc-sat09) R 28422 28424 28044 0 -1 4194304 766 0 0 0 1309 0 0 0 25 0 1 0 101380657 3649536 752 1992294400 134512640 135192793 4294956224 18446744073709551615 134552288 0 0 4096 0 0 0 0 17 1 0 0
/proc/28424/statm: 891 752 73 166 0 722 0
Current children cumulated CPU time (s) 13.09
Current children cumulated vsize (KiB) 3564

Child status: 10
Real time (s): 13.1787
CPU time (s): 13.174
CPU user time (s): 13.168
CPU system time (s): 0.005999
CPU usage (%): 99.9644
Max. virtual memory (cumulated for all children) (KiB): 3564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.168
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 777
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= 26

runsolver used 0.012998 second user time and 0.036994 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-26 10:11:07
IDJOB=1728154
IDBENCH=24665
IDSOLVER=504
FILE ID=node4/1728154-1240733467
PBS_JOBID= 9186927
Free space on /tmp= 66260 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/crafted/Hard/contest05/others/mod2c-rand3bip-sat-220-2.sat05-2489.reshuffled-07.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1728154-1240733467/watcher-1728154-1240733467 -o /tmp/evaluation-result-1728154-1240733467/solver-1728154-1240733467 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1728154-1240733467.cnf

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

MD5SUM BENCH= 42a2d57c47222c3ed0e0546d3518a54d
RANDOM SEED=293294511

node4.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		: 3000.265
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		: 3000.265
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:       1568984 kB
Buffers:         53612 kB
Cached:         367764 kB
SwapCached:       5596 kB
Active:         208504 kB
Inactive:       221408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1568984 kB
SwapTotal:     4192956 kB
SwapFree:      4181848 kB
Dirty:             740 kB
Writeback:           0 kB
Mapped:          14008 kB
Slab:            42988 kB
Committed_AS:   512064 kB
PageTables:       1468 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= 66256 MiB
End job on node4 at 2009-04-26 10:11:20