Trace number 1784147

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 10.0085 10.0124

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 benchmark1.10683
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 % |
0.00/0.00	c |       812 |      61      132      396 |       64       41      8 |  0.027 % |
0.00/0.01	c |      1318 |      61      132      396 |       70       55      9 |  0.027 % |
0.00/0.02	c |      2077 |      61      132      396 |       77       85      8 |  0.027 % |
0.00/0.03	c |      3216 |      61      132      396 |       85       75      8 |  0.027 % |
0.04/0.04	c |      4924 |      61      132      396 |       94       52      7 |  0.027 % |
0.04/0.07	c |      7486 |      61      132      396 |      103      110      8 |  0.027 % |
0.10/0.10	c |     11330 |      61      132      396 |      114       68      7 |  0.027 % |
0.10/0.16	c |     17096 |      61      132      396 |      125      135      9 |  0.027 % |
0.20/0.24	c |     25745 |      61      132      396 |      138       77      7 |  0.027 % |
0.30/0.35	c |     38719 |      61      132      396 |      151      143      9 |  0.027 % |
0.50/0.53	c |     58180 |      61      132      396 |      167      147      8 |  0.027 % |
0.80/0.81	c |     87372 |      61      132      396 |      183      136      8 |  0.027 % |
1.20/1.22	c |    131161 |      61      132      396 |      202      108      8 |  0.027 % |
1.80/1.84	c |    196845 |      61      132      396 |      222      198      8 |  0.027 % |
2.70/2.77	c |    295371 |      61      132      396 |      244      154      7 |  0.027 % |
4.09/4.18	c |    443160 |      61      132      396 |      269      244      8 |  0.027 % |
6.29/6.33	c |    664843 |      61      132      396 |      296      149      6 |  0.027 % |
9.59/9.61	c |    997368 |      61      132      396 |      325      225      7 |  0.029 % |
9.99/10.01	c ===============================================================================
9.99/10.01	c restarts              : 2047
9.99/10.01	c conflicts             : 1038158        (103780 /sec)
9.99/10.01	c decisions             : 1345097        (134463 /sec)
9.99/10.01	c propagations          : 21114225       (2110688 /sec)
9.99/10.01	c conflict literals     : 11305679       (9.95 % deleted)
9.99/10.01	c Memory used           : 17.35 MB
9.99/10.01	c CPU time              : 10.0035 s
9.99/10.01	c 
9.99/10.01	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-1784147-1241919839/watcher-1784147-1241919839 -o /tmp/evaluation-result-1784147-1241919839/solver-1784147-1241919839 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784147-1241919839.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 3/64 25859
/proc/meminfo: memFree=1832096/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=12564 CPUtime=0
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 147 0 0 0 0 0 0 0 18 0 1 0 220011344 12865536 128 1992294400 4194304 5092341 548682068848 18446744073709551615 4244133 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 3141 128 100 219 0 2919 0

[startup+0.043285 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25859
/proc/meminfo: memFree=1832096/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=12564 CPUtime=0.04
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 156 0 0 0 4 0 0 0 18 0 1 0 220011344 12865536 133 1992294400 4194304 5092341 548682068848 18446744073709551615 4241812 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 3141 133 101 219 0 2919 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12564

[startup+0.101288 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25859
/proc/meminfo: memFree=1832096/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=12568 CPUtime=0.1
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 169 0 0 0 10 0 0 0 18 0 1 0 220011344 12869632 133 1992294400 4194304 5092341 548682068848 18446744073709551615 4495141 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 3142 133 101 219 0 2920 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12568

[startup+0.301301 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25859
/proc/meminfo: memFree=1832096/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=0.3
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 176 0 0 0 30 0 0 0 19 0 1 0 220011344 18186240 140 1992294400 4194304 5092341 548682068848 18446744073709551615 4249253 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 140 101 219 0 4218 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 17760

[startup+0.701326 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25859
/proc/meminfo: memFree=1832096/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=0.7
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 179 0 0 0 70 0 0 0 22 0 1 0 220011344 18186240 143 1992294400 4194304 5092341 548682068848 18446744073709551615 4244076 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 143 101 219 0 4218 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 17760

[startup+1.50238 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831832/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=1.5
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 188 0 0 0 150 0 0 0 25 0 1 0 220011344 18186240 148 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 148 101 219 0 4218 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 17760

[startup+3.10149 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831704/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=3.09
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 199 0 0 0 309 0 0 0 25 0 1 0 220011344 18186240 154 1992294400 4194304 5092341 548682068848 18446744073709551615 4240840 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 154 101 219 0 4218 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17760

[startup+6.3017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=6.29
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 209 0 0 0 629 0 0 0 25 0 1 0 220011344 18186240 159 1992294400 4194304 5092341 548682068848 18446744073709551615 4241098 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/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+7.90181 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=7.89
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 213 0 0 0 789 0 0 0 25 0 1 0 220011344 18186240 163 1992294400 4194304 5092341 548682068848 18446744073709551615 4250072 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 163 101 219 0 4218 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 17760

[startup+8.70186 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=8.69
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 215 0 0 0 869 0 0 0 25 0 1 0 220011344 18186240 165 1992294400 4194304 5092341 548682068848 18446744073709551615 4250042 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 165 101 219 0 4218 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 17760

[startup+9.50191 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=9.49
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 216 0 0 0 949 0 0 0 25 0 1 0 220011344 18186240 166 1992294400 4194304 5092341 548682068848 18446744073709551615 4241380 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 166 101 219 0 4218 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 17760

[startup+9.90594 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=9.89
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 217 0 0 0 989 0 0 0 25 0 1 0 220011344 18186240 167 1992294400 4194304 5092341 548682068848 18446744073709551615 4244130 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/statm: 4440 167 101 219 0 4218 0
Current children cumulated CPU time (s) 9.89
Current children cumulated vsize (KiB) 17760

[startup+10.0029 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25860
/proc/meminfo: memFree=1831576/2055920 swapFree=4156276/4192956
[pid=25859] ppid=25857 vsize=17760 CPUtime=9.99
/proc/25859/stat : 25859 (minisat) R 25857 25859 25709 0 -1 4194304 217 0 0 0 999 0 0 0 25 0 1 0 220011344 18186240 167 1992294400 4194304 5092341 548682068848 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/25859/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): 10.0124
CPU time (s): 10.0085
CPU user time (s): 10.0035
CPU system time (s): 0.004999
CPU usage (%): 99.9608
Max. virtual memory (cumulated for all children) (KiB): 17760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.0035
system time used= 0.004999
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= 2
involuntary context switches= 25

runsolver used 0.007998 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node52 at 2009-05-10 03:43:59
IDJOB=1784147
IDBENCH=71108
IDSOLVER=608
FILE ID=node52/1784147-1241919839
PBS_JOBID= 9264845
Free space on /tmp= 66312 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-1784147-1241919839/watcher-1784147-1241919839 -o /tmp/evaluation-result-1784147-1241919839/solver-1784147-1241919839 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784147-1241919839.cnf

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=1572636765

node52.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		: 3000.214
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		: 3000.214
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:       1832512 kB
Buffers:         40948 kB
Cached:         106680 kB
SwapCached:      31620 kB
Active:          82736 kB
Inactive:        98664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832512 kB
SwapTotal:     4192956 kB
SwapFree:      4156276 kB
Dirty:             920 kB
Writeback:           0 kB
Mapped:          13716 kB
Slab:            27964 kB
Committed_AS:   818252 kB
PageTables:       1476 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= 66312 MiB
End job on node52 at 2009-05-10 03:44:09