Trace number 1556881

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 4.32634 4.32648

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-04.cnf
MD5SUM019984f9d84c315e8eec645fb9d169da
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.32634
Satisfiable
(Un)Satisfiability was proved
Number of variables68679
Number of clauses223994
Sum of the clauses size580546
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291178
Number of clauses of size 3132687
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 |                                                                             |
0.19/0.26	c |  Number of variables:         68679                                         |
0.19/0.26	c |  Number of clauses:          223351                                         |
0.19/0.26	c |  Parse time:                   0.23 s                                       |
1.19/1.24	c |  Simplification time:          0.96 s                                       |
1.19/1.24	c |                                                                             |
1.19/1.24	c ============================[ Search Statistics ]==============================
1.19/1.24	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.19/1.24	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.19/1.24	c ===============================================================================
1.59/1.63	c |       100 |   28074   161289   545965 |    59139       97     73 |  0.422 % |
2.49/2.58	c |       250 |   28074   161257   545864 |    65053      244     71 |  0.422 % |
4.29/4.32	c ===============================================================================
4.29/4.32	c restarts              : 4
4.29/4.32	c conflicts             : 444            (104 /sec)
4.29/4.32	c decisions             : 2831           (664 /sec)
4.29/4.32	c propagations          : 3821508        (896152 /sec)
4.29/4.32	c conflict literals     : 34313          (30.77 % deleted)
4.29/4.32	c Memory used           : 28.95 MB
4.29/4.32	c CPU time              : 4.26435 s
4.29/4.32	c 
4.29/4.32	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-1556881-1238750939/watcher-1556881-1238750939 -o /tmp/evaluation-result-1556881-1238750939/solver-1556881-1238750939 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1556881-1238750939.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: 1.18 1.63 1.41 3/64 25038
/proc/meminfo: memFree=1043944/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=8188 CPUtime=0
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 519 0 0 0 0 0 0 0 18 0 1 0 1147759777 8384512 503 1992294400 4194304 5092341 548682068832 18446744073709551615 4515648 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 2047 512 63 219 0 1825 0

[startup+0.0353141 s]
/proc/loadavg: 1.18 1.63 1.41 3/64 25038
/proc/meminfo: memFree=1043944/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=15888 CPUtime=0.03
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 2162 0 0 0 2 1 0 0 18 0 1 0 1147759777 16269312 2125 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 3972 2125 63 219 0 3750 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 15888

[startup+0.101326 s]
/proc/loadavg: 1.18 1.63 1.41 3/64 25038
/proc/meminfo: memFree=1043944/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=20688 CPUtime=0.09
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 3751 0 0 0 7 2 0 0 18 0 1 0 1147759777 21184512 3611 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 5172 3611 63 219 0 4950 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20688

[startup+0.301364 s]
/proc/loadavg: 1.18 1.63 1.41 3/64 25038
/proc/meminfo: memFree=1043944/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=28196 CPUtime=0.3
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 6724 0 0 0 26 4 0 0 19 0 1 0 1147759777 28872704 6154 1992294400 4194304 5092341 548682068832 18446744073709551615 4219478 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 7049 6154 87 219 0 6827 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 28196

[startup+0.701439 s]
/proc/loadavg: 1.18 1.63 1.41 3/64 25038
/proc/meminfo: memFree=1043944/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=34892 CPUtime=0.69
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 8158 0 0 0 65 4 0 0 23 0 1 0 1147759777 35729408 7588 1992294400 4194304 5092341 548682068832 18446744073709551615 4270245 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 8723 7588 87 219 0 8501 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 34892

[startup+1.50159 s]
/proc/loadavg: 1.18 1.63 1.41 2/65 25039
/proc/meminfo: memFree=1011040/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=29640 CPUtime=1.49
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 9552 0 0 0 144 5 0 0 25 0 1 0 1147759777 30351360 6205 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 7410 6205 91 219 0 7188 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 29640

[startup+3.10189 s]
/proc/loadavg: 1.18 1.63 1.41 2/65 25039
/proc/meminfo: memFree=1019040/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=29640 CPUtime=3.09
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 9581 0 0 0 304 5 0 0 25 0 1 0 1147759777 30351360 6234 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 7410 6234 102 219 0 7188 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 29640

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

[startup+3.90104 s]
/proc/loadavg: 1.18 1.63 1.41 2/65 25039
/proc/meminfo: memFree=1019040/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=29640 CPUtime=3.89
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 9588 0 0 0 384 5 0 0 25 0 1 0 1147759777 30351360 6241 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 7410 6241 102 219 0 7188 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 29640

[startup+4.30112 s]
/proc/loadavg: 1.18 1.63 1.41 2/65 25039
/proc/meminfo: memFree=1019040/2055920 swapFree=4178924/4192956
[pid=25038] ppid=25036 vsize=29640 CPUtime=4.29
/proc/25038/stat : 25038 (minisat) R 25036 25038 24329 0 -1 4194304 9593 0 0 0 424 5 0 0 25 0 1 0 1147759777 30351360 6246 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/25038/statm: 7410 6246 102 219 0 7188 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 29640

Child status: 20
Real time (s): 4.32648
CPU time (s): 4.32634
CPU user time (s): 4.26435
CPU system time (s): 0.06199
CPU usage (%): 99.9968
Max. virtual memory (cumulated for all children) (KiB): 41320

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.26435
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9603
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= 8

runsolver used 0.005999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node21 at 2009-04-03 11:29:00
IDJOB=1556881
IDBENCH=70827
IDSOLVER=546
FILE ID=node21/1556881-1238750939
PBS_JOBID= 9086104
Free space on /tmp= 66500 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-04.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556881-1238750939/watcher-1556881-1238750939 -o /tmp/evaluation-result-1556881-1238750939/solver-1556881-1238750939 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1556881-1238750939.cnf

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

MD5SUM BENCH= 019984f9d84c315e8eec645fb9d169da
RANDOM SEED=161904530

node21.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		: 3000.259
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		: 3000.259
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:       1044424 kB
Buffers:         98340 kB
Cached:         808288 kB
SwapCached:       7836 kB
Active:         137400 kB
Inactive:       778704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1044424 kB
SwapTotal:     4192956 kB
SwapFree:      4178924 kB
Dirty:            4960 kB
Writeback:           0 kB
Mapped:          15128 kB
Slab:            81468 kB
Committed_AS:  3276072 kB
PageTables:       1380 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= 66500 MiB
End job on node21 at 2009-04-03 11:29:04