Trace number 310908

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, and are wall clock time (not CPU 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
minimarch 2007-02-08SAT 28.8776 28.8853

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
MD5SUMe5673a7c266f877ed2c58f7b531e89ad
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.052991
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  1295                                                 |
0.00/0.00	|  Number of clauses:    4026                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.02	============================[ Search Statistics ]==============================
0.00/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.02	===============================================================================
0.00/0.02	|         0 |    1098     3713    11015 |     1237        0    nan |  0.000 % |
0.00/0.02	|       101 |    1098     3713    11015 |     1361      101     15 |  0.001 % |
0.00/0.03	|       251 |    1098     3713    11015 |     1497      251     15 |  0.000 % |
0.00/0.05	|       477 |    1098     3713    11015 |     1647      477     16 |  0.000 % |
0.00/0.07	|       814 |    1098     3713    11015 |     1812      814     16 |  0.000 % |
0.10/0.11	|      1320 |    1098     3713    11015 |     1993     1320     16 |  0.000 % |
0.10/0.17	|      2080 |    1098     3713    11015 |     2192     1045     15 |  0.001 % |
0.20/0.26	|      3220 |    1098     3713    11015 |     2411     2185     16 |  0.000 % |
0.31/0.41	|      4929 |    1098     3713    11015 |     2653     1351     17 |  0.001 % |
0.61/0.63	|      7491 |    1098     3713    11015 |     2918     2545     17 |  0.000 % |
0.92/0.99	|     11336 |    1098     3713    11015 |     3210     1892     15 |  0.000 % |
1.44/1.51	|     17102 |    1098     3713    11015 |     3531     2688     18 |  0.000 % |
2.26/2.34	|     25752 |    1098     3713    11015 |     3884     2280     13 |  0.001 % |
3.59/3.65	|     38726 |    1098     3713    11015 |     4272     3288     20 |  0.000 % |
5.53/5.61	|     58188 |    1098     3713    11015 |     4700     3082     20 |  0.000 % |
8.70/8.76	|     87380 |    1098     3713    11015 |     5170     3501     16 |  0.001 % |
13.52/13.56	|    131170 |    1098     3713    11015 |     5687     5095     18 |  0.000 % |
21.09/21.15	|    196854 |    1098     3713    11015 |     6255     4088     17 |  0.001 % |
28.78/28.88	===============================================================================
28.78/28.88	lookaheads            : 280978
28.78/28.88	variable balance      : 0.00
28.78/28.88	restarts              : 18
28.78/28.88	conflicts             : 262412         (9090 /sec)
28.78/28.88	decisions             : 280979         (1.73 % random) (9733 /sec)
28.78/28.88	decision = positive   : 131540
28.78/28.88	decision = negative   : 149438
28.78/28.88	propagations          : 44195287       (1530858 /sec)
28.78/28.88	conflict literals     : 5103659        (39.41 % deleted)
28.78/28.88	Memory used           : 3.34 MB
28.78/28.88	CPU time              : 28.8696 s
28.78/28.88	
28.78/28.88	s SATISFIABLE
28.78/28.88	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 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-1294 1295 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-310908-1172562870 -o ROOT/results/node2/solver-310908-1172562870 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310908-1172562870/minimarch /tmp/evaluation/310908-1172562870/instance-310908-1172562870.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.99 0.96 3/77 29175
/proc/meminfo: memFree=1670272/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2000 CPUtime=0
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 276241968 2048000 165 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 500 165 51 132 0 365 0

[startup+0.107306 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 29175
/proc/meminfo: memFree=1670272/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2224 CPUtime=0.1
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 236 0 0 0 10 0 0 0 18 0 1 0 276241968 2277376 220 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557547 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 556 220 66 132 0 421 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2224

[startup+0.515347 s]
/proc/loadavg: 1.00 0.99 0.96 3/77 29175
/proc/meminfo: memFree=1670272/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2360 CPUtime=0.51
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 271 0 0 0 51 0 0 0 22 0 1 0 276241968 2416640 255 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 590 255 66 132 0 455 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2360

[startup+1.34043 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1669432/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2492 CPUtime=1.33
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 301 0 0 0 133 0 0 0 25 0 1 0 276241968 2551808 285 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134550947 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 623 285 66 132 0 488 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2492

[startup+2.9766 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1669048/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2624 CPUtime=2.97
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 353 0 0 0 297 0 0 0 25 0 1 0 276241968 2686976 337 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 656 337 66 132 0 521 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2624

[startup+6.25294 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668792/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=2888 CPUtime=6.24
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 394 0 0 0 624 0 0 0 25 0 1 0 276241968 2957312 378 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 722 378 66 132 0 587 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2888

[startup+12.7106 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668600/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3020 CPUtime=12.7
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 438 0 0 0 1270 0 0 0 25 0 1 0 276241968 3092480 422 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551713 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 755 422 66 132 0 620 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 3020

[startup+25.5109 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668280/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3284 CPUtime=25.49
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 513 0 0 0 2549 0 0 0 25 0 1 0 276241968 3362816 497 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551397 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 821 497 66 132 0 686 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3284

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

[startup+26.23 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668280/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3284 CPUtime=26.21
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 514 0 0 0 2621 0 0 0 25 0 1 0 276241968 3362816 498 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551359 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 821 498 66 132 0 686 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 3284

[startup+27.8722 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668216/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3416 CPUtime=27.85
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 530 0 0 0 2785 0 0 0 25 0 1 0 276241968 3497984 514 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551239 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 854 514 66 132 0 719 0
Current children cumulated CPU time (s) 27.85
Current children cumulated vsize (KiB) 3416

[startup+28.2842 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668216/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3416 CPUtime=28.27
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 530 0 0 0 2827 0 0 0 25 0 1 0 276241968 3497984 514 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 854 514 66 132 0 719 0
Current children cumulated CPU time (s) 28.27
Current children cumulated vsize (KiB) 3416

[startup+28.6923 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668216/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3416 CPUtime=28.67
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 530 0 0 0 2867 0 0 0 25 0 1 0 276241968 3497984 514 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551352 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 854 514 66 132 0 719 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 3416

[startup+28.7943 s]
/proc/loadavg: 1.00 0.99 0.96 2/78 29176
/proc/meminfo: memFree=1668216/2055920 swapFree=4192812/4192956
[pid=29175] ppid=29173 vsize=3416 CPUtime=28.78
/proc/29175/stat : 29175 (minimarch) R 29173 29175 27407 0 -1 4194304 530 0 0 0 2878 0 0 0 25 0 1 0 276241968 3497984 514 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551264 0 0 4096 3 0 0 0 17 1 0 0
/proc/29175/statm: 854 514 66 132 0 719 0
Current children cumulated CPU time (s) 28.78
Current children cumulated vsize (KiB) 3416

Child status: 10
Real time (s): 28.8853
CPU time (s): 28.8776
CPU user time (s): 28.8696
CPU system time (s): 0.007998
CPU usage (%): 99.9733
Max. virtual memory (cumulated for all children) (KiB): 3416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.8696
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= 540
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= 8
involuntary context switches= 578

runsolver used 0.027995 second user time and 0.080987 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 07:54:30 UTC 2007

IDJOB= 310908
IDBENCH= 20299
IDSOLVER= 110
FILE ID= node2/310908-1172562870

PBS_JOBID= 3971655

Free space on /tmp= 66556 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/310908-1172562870/minimarch /tmp/evaluation/310908-1172562870/instance-310908-1172562870.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-310908-1172562870 -o ROOT/results/node2/solver-310908-1172562870 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310908-1172562870/minimarch /tmp/evaluation/310908-1172562870/instance-310908-1172562870.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  e5673a7c266f877ed2c58f7b531e89ad

RANDOM SEED= 998924155

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.247
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		: 3000.247
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:       1670744 kB
Buffers:         47952 kB
Cached:         207388 kB
SwapCached:          0 kB
Active:         252632 kB
Inactive:        62576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670744 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2432 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            55480 kB
Committed_AS:  1313200 kB
PageTables:       1812 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= 66556 MiB

End job on node2 on Tue Feb 27 07:55:00 UTC 2007