Trace number 1732033

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 10.0415 10.0448

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.959853
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:            61                                         |
0.00/0.00	c |  Number of clauses:             132                                         |
0.00/0.00	c |  Parse time:                   0.00 s                                       |
0.00/0.00	c |  Simplification time:          0.00 s                                       |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |       100 |      61      132      396 |       48       42     10 |  0.027 % |
0.00/0.00	c |       250 |      61      132      396 |       53       58     10 |  0.027 % |
0.00/0.00	c |       475 |      61      132      396 |       58       74      9 |  0.027 % |
0.00/0.01	c |       812 |      61      132      396 |       64       41      8 |  0.027 % |
0.00/0.01	c |      1318 |      61      132      396 |       70       55      9 |  0.027 % |
0.01/0.02	c |      2077 |      61      132      396 |       77       85      8 |  0.027 % |
0.01/0.03	c |      3216 |      61      132      396 |       85       75      8 |  0.027 % |
0.01/0.04	c |      4924 |      61      132      396 |       94       52      7 |  0.027 % |
0.01/0.07	c |      7486 |      61      132      396 |      103      110      8 |  0.027 % |
0.09/0.11	c |     11330 |      61      132      396 |      114       68      7 |  0.027 % |
0.09/0.16	c |     17096 |      61      132      396 |      125      135      9 |  0.027 % |
0.19/0.24	c |     25745 |      61      132      396 |      138       77      7 |  0.027 % |
0.29/0.36	c |     38719 |      61      132      396 |      151      143      9 |  0.027 % |
0.49/0.54	c |     58180 |      61      132      396 |      167      147      8 |  0.027 % |
0.79/0.81	c |     87372 |      61      132      396 |      183      136      8 |  0.027 % |
1.19/1.23	c |    131161 |      61      132      396 |      202      108      8 |  0.027 % |
1.79/1.86	c |    196845 |      61      132      396 |      222      198      8 |  0.027 % |
2.69/2.80	c |    295371 |      61      132      396 |      244      154      7 |  0.027 % |
4.19/4.22	c |    443160 |      61      132      396 |      269      244      8 |  0.027 % |
6.29/6.37	c |    664843 |      61      132      396 |      296      149      6 |  0.027 % |
9.59/9.64	c |    997368 |      61      132      396 |      325      225      7 |  0.029 % |
9.99/10.04	c ===============================================================================
9.99/10.04	c restarts              : 2047
9.99/10.04	c conflicts             : 1038158        (103418 /sec)
9.99/10.04	c decisions             : 1345097        (133994 /sec)
9.99/10.04	c propagations          : 21114225       (2103330 /sec)
9.99/10.04	c conflict literals     : 11305679       (9.95 % deleted)
9.99/10.04	c Memory used           : 17.35 MB
9.99/10.04	c CPU time              : 10.0385 s
9.99/10.04	c 
9.99/10.04	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732033-1240776960/watcher-1732033-1240776960 -o /tmp/evaluation-result-1732033-1240776960/solver-1732033-1240776960 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1732033-1240776960.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: 1.08 1.04 1.00 2/64 31734
/proc/meminfo: memFree=1672120/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=12564 CPUtime=0
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 147 0 0 0 0 0 0 0 20 0 1 0 105724574 12865536 128 1992294400 4194304 5092341 548682068848 18446744073709551615 4493324 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 3141 128 100 219 0 2919 0

[startup+0.0212619 s]
/proc/loadavg: 1.08 1.04 1.00 2/64 31734
/proc/meminfo: memFree=1672120/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=12564 CPUtime=0.01
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 154 0 0 0 1 0 0 0 20 0 1 0 105724574 12865536 131 1992294400 4194304 5092341 548682068848 18446744073709551615 4240633 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 3141 131 100 219 0 2919 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12564

[startup+0.10127 s]
/proc/loadavg: 1.08 1.04 1.00 2/64 31734
/proc/meminfo: memFree=1672120/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17756 CPUtime=0.09
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 166 0 0 0 9 0 0 0 20 0 1 0 105724574 18182144 135 1992294400 4194304 5092341 548682068848 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4439 135 101 219 0 4217 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17756

[startup+0.301289 s]
/proc/loadavg: 1.08 1.04 1.00 2/64 31734
/proc/meminfo: memFree=1672120/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=0.29
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 176 0 0 0 29 0 0 0 22 0 1 0 105724574 18186240 140 1992294400 4194304 5092341 548682068848 18446744073709551615 4240667 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 140 101 219 0 4218 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17760

[startup+0.701329 s]
/proc/loadavg: 1.08 1.04 1.00 2/64 31734
/proc/meminfo: memFree=1672120/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=0.69
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 179 0 0 0 69 0 0 0 25 0 1 0 105724574 18186240 143 1992294400 4194304 5092341 548682068848 18446744073709551615 4244133 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 143 101 219 0 4218 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17760

[startup+1.50141 s]
/proc/loadavg: 1.08 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671920/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=1.49
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 188 0 0 0 149 0 0 0 25 0 1 0 105724574 18186240 148 1992294400 4194304 5092341 548682068848 18446744073709551615 4249477 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 148 101 219 0 4218 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17760

[startup+3.10157 s]
/proc/loadavg: 1.08 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671728/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=3.09
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 199 0 0 0 309 0 0 0 25 0 1 0 105724574 18186240 154 1992294400 4194304 5092341 548682068848 18446744073709551615 4251991 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 154 101 219 0 4218 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17760

[startup+6.30189 s]
/proc/loadavg: 1.08 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671728/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=6.29
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 209 0 0 0 629 0 0 0 25 0 1 0 105724574 18186240 159 1992294400 4194304 5092341 548682068848 18446744073709551615 4241422 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 159 101 219 0 4218 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17760

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

[startup+7.90105 s]
/proc/loadavg: 1.07 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671728/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=7.89
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 213 0 0 0 789 0 0 0 25 0 1 0 105724574 18186240 163 1992294400 4194304 5092341 548682068848 18446744073709551615 4241011 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 163 101 219 0 4218 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 17760

[startup+8.70113 s]
/proc/loadavg: 1.07 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671664/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=8.69
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 215 0 0 0 869 0 0 0 25 0 1 0 105724574 18186240 165 1992294400 4194304 5092341 548682068848 18446744073709551615 4248135 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 165 101 219 0 4218 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 17760

[startup+9.50121 s]
/proc/loadavg: 1.07 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671664/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=9.49
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 216 0 0 0 949 0 0 0 25 0 1 0 105724574 18186240 166 1992294400 4194304 5092341 548682068848 18446744073709551615 4240654 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 166 101 219 0 4218 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 17760

[startup+9.90525 s]
/proc/loadavg: 1.07 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671664/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=9.89
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 217 0 0 0 989 0 0 0 25 0 1 0 105724574 18186240 167 1992294400 4194304 5092341 548682068848 18446744073709551615 4250191 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 167 101 219 0 4218 0
Current children cumulated CPU time (s) 9.89
Current children cumulated vsize (KiB) 17760

[startup+10.0013 s]
/proc/loadavg: 1.07 1.04 1.00 2/65 31735
/proc/meminfo: memFree=1671664/2055920 swapFree=4192812/4192956
[pid=31734] ppid=31732 vsize=17760 CPUtime=9.99
/proc/31734/stat : 31734 (minisat) R 31732 31734 31421 0 -1 4194304 217 0 0 0 999 0 0 0 25 0 1 0 105724574 18186240 167 1992294400 4194304 5092341 548682068848 18446744073709551615 4250275 0 0 4096 3 0 0 0 17 1 0 0
/proc/31734/statm: 4440 167 101 219 0 4218 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (KiB) 17760

Child status: 20
Real time (s): 10.0448
CPU time (s): 10.0415
CPU user time (s): 10.0385
CPU system time (s): 0.002999
CPU usage (%): 99.9669
Max. virtual memory (cumulated for all children) (KiB): 17760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.0385
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 227
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= 1
involuntary context switches= 25

runsolver used 0.010998 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node36 at 2009-04-26 22:16:00
IDJOB=1732033
IDBENCH=71108
IDSOLVER=546
FILE ID=node36/1732033-1240776960
PBS_JOBID= 9187216
Free space on /tmp= 66392 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732033-1240776960/watcher-1732033-1240776960 -o /tmp/evaluation-result-1732033-1240776960/solver-1732033-1240776960 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1732033-1240776960.cnf

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=2091988782

node36.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		: 3000.232
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		: 3000.232
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:       1672536 kB
Buffers:         45380 kB
Cached:         259456 kB
SwapCached:        144 kB
Active:         105224 kB
Inactive:       213620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1672536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1092 kB
Writeback:           0 kB
Mapped:          23684 kB
Slab:            50540 kB
Committed_AS:   402948 kB
PageTables:       1356 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= 66392 MiB
End job on node36 at 2009-04-26 22:16:10