Trace number 1730346

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
IUT_BMB_SAT 1.0UNSAT 4.15437 4.15591

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61375
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c IUT_BMB_SAT version 1.0
1.99/2.08	c WARNING: for repeatability, setting FPU to use double precision
1.99/2.08	c ============================[ Problem Statistics ]=============================
1.99/2.08	c |                                                                             |
1.99/2.08	c |  Number of variables:  90300                                                |
1.99/2.08	c |  Number of clauses:    179700                                               |
2.87/2.96	c |  Parsing time:         0.84         s                                       |
3.97/4.06	c restarts              : 0
3.97/4.06	c conflicts             : 0              (0 /sec)
3.97/4.06	c decisions             : 0              ( nan % random) (0 /sec)
3.97/4.06	c propagations          : 2              (1 /sec)
3.97/4.06	c conflict literals     : 0              ( nan % deleted)
3.97/4.06	c Memory used           : 38.44 MB
3.97/4.06	c CPU time              : 1.91471 s
3.97/4.06	
3.97/4.06	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-1730346-1240758417/watcher-1730346-1240758417 -o /tmp/evaluation-result-1730346-1240758417/solver-1730346-1240758417 -C 1200 -W 1800 -M 1800 --output-limit 1,15 IUT_BMB_SAT HOME/instance-1730346-1240758417.cnf HOME 

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: 0.96 0.96 0.99 3/64 22351
/proc/meminfo: memFree=1775960/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=3392 CPUtime=0
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 1 0 103876433 3473408 167 1992294400 134512640 135635285 4294956208 18446744073709551615 134533644 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 848 168 92 274 0 571 0

[startup+0.063336 s]
/proc/loadavg: 0.96 0.96 0.99 3/64 22351
/proc/meminfo: memFree=1775960/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=6928 CPUtime=0.05
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 1434 0 0 0 5 0 0 0 18 0 1 0 103876433 7094272 1417 1992294400 134512640 135635285 4294956208 18446744073709551615 134533635 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 1732 1418 92 274 0 1455 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6928

[startup+0.102343 s]
/proc/loadavg: 0.96 0.96 0.99 3/64 22351
/proc/meminfo: memFree=1775960/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=15408 CPUtime=0.09
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 3575 0 0 0 8 1 0 0 18 0 1 0 103876433 15777792 3558 1992294400 134512640 135635285 4294956208 18446744073709551615 134535637 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 3852 3560 92 274 0 3575 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15408

[startup+0.301381 s]
/proc/loadavg: 0.96 0.96 0.99 3/64 22351
/proc/meminfo: memFree=1775960/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=18048 CPUtime=0.29
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 4347 0 0 0 28 1 0 0 19 0 1 0 103876433 18481152 4330 1992294400 134512640 135635285 4294956208 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 4512 4330 99 274 0 4235 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18048

[startup+0.702464 s]
/proc/loadavg: 0.96 0.96 0.99 3/64 22351
/proc/meminfo: memFree=1775960/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=22008 CPUtime=0.69
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 5339 0 0 0 67 2 0 0 23 0 1 0 103876433 22536192 5322 1992294400 134512640 135635285 4294956208 18446744073709551615 134625099 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 5502 5322 99 274 0 5225 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 22008

[startup+1.50162 s]
/proc/loadavg: 0.96 0.96 0.99 2/65 22352
/proc/meminfo: memFree=1752464/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=24600 CPUtime=1.49
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 5972 0 0 0 116 33 0 0 25 0 1 0 103876433 25190400 5955 1992294400 134512640 135635285 4294956208 18446744073709551615 135132478 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 6150 5955 101 274 0 5873 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24600

[startup+3.10194 s]
/proc/loadavg: 0.96 0.96 0.99 2/67 22354
/proc/meminfo: memFree=1742592/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=24600 CPUtime=2.07
/proc/22351/stat : 22351 (IUT_BMB_SAT) S 22349 22351 21981 0 -1 4194304 5978 0 0 0 137 70 0 0 25 0 1 0 103876433 25190400 5960 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 1 0 0
/proc/22351/statm: 6150 5960 106 274 0 5873 0
[pid=22353] ppid=22351 vsize=5356 CPUtime=0
/proc/22353/stat : 22353 (sh) S 22351 22351 21981 0 -1 4194304 270 0 0 0 0 0 0 0 18 0 1 0 103876641 5484544 232 1992294400 4194304 4889804 548682068880 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22353/statm: 1339 232 193 169 0 50 0
[pid=22354] ppid=22353 vsize=24792 CPUtime=1
/proc/22354/stat : 22354 (minisat) R 22353 22351 21981 0 -1 4194304 5927 0 0 0 97 3 0 0 25 0 1 0 103876642 25387008 5898 1992294400 134512640 135243223 4294956304 18446744073709551615 134535299 0 0 4096 3 0 0 0 17 1 0 0
/proc/22354/statm: 6198 5898 77 178 0 6018 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 54748

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

[startup+3.9011 s]
/proc/loadavg: 0.96 0.96 0.99 2/67 22354
/proc/meminfo: memFree=1722560/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=24600 CPUtime=2.07
/proc/22351/stat : 22351 (IUT_BMB_SAT) S 22349 22351 21981 0 -1 4194304 5978 0 0 0 137 70 0 0 25 0 1 0 103876433 25190400 5960 1992294400 134512640 135635285 4294956208 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 1 0 0
/proc/22351/statm: 6150 5960 106 274 0 5873 0
[pid=22353] ppid=22351 vsize=5356 CPUtime=0
/proc/22353/stat : 22353 (sh) S 22351 22351 21981 0 -1 4194304 270 0 0 0 0 0 0 0 18 0 1 0 103876641 5484544 232 1992294400 4194304 4889804 548682068880 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22353/statm: 1339 232 193 169 0 50 0
[pid=22354] ppid=22353 vsize=36504 CPUtime=1.8
/proc/22354/stat : 22354 (minisat) R 22353 22351 21981 0 -1 4194304 8834 0 0 0 175 5 0 0 25 0 1 0 103876642 37380096 8805 1992294400 134512640 135243223 4294956304 18446744073709551615 134547689 0 0 4096 3 0 0 0 17 1 0 0
/proc/22354/statm: 9126 8805 78 178 0 8946 0
Current children cumulated CPU time (s) 3.87
Current children cumulated vsize (KiB) 66460

[startup+4.10114 s]
/proc/loadavg: 0.96 0.96 0.99 2/67 22354
/proc/meminfo: memFree=1722560/2055920 swapFree=4191900/4192956
[pid=22351] ppid=22349 vsize=16120 CPUtime=4.07
/proc/22351/stat : 22351 (IUT_BMB_SAT) R 22349 22351 21981 0 -1 4194304 8281 9737 0 0 140 70 191 6 17 0 1 0 103876433 16506880 3841 1992294400 134512640 135635285 4294956208 18446744073709551615 135069098 0 0 4096 0 0 0 0 17 1 0 0
/proc/22351/statm: 4030 3841 107 274 0 3753 0
Current children cumulated CPU time (s) 4.07
Current children cumulated vsize (KiB) 16120

Child status: 0
Real time (s): 4.15591
CPU time (s): 4.15437
CPU user time (s): 3.37549
CPU system time (s): 0.778881
CPU usage (%): 99.9629
Max. virtual memory (cumulated for all children) (KiB): 67912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.37549
system time used= 0.778881
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18023
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= 11

runsolver used 0.001999 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node1 at 2009-04-26 17:06:57
IDJOB=1730346
IDBENCH=24728
IDSOLVER=523
FILE ID=node1/1730346-1240758417
PBS_JOBID= 9187091
Free space on /tmp= 66332 MiB

SOLVER NAME= IUT_BMB_SAT 1.0
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= IUT_BMB_SAT BENCHNAME TMPDIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1730346-1240758417/watcher-1730346-1240758417 -o /tmp/evaluation-result-1730346-1240758417/solver-1730346-1240758417 -C 1200 -W 1800 -M 1800 --output-limit 1,15  IUT_BMB_SAT HOME/instance-1730346-1240758417.cnf HOME

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

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=996106071

node1.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	: 5931.00
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:       1776440 kB
Buffers:         26968 kB
Cached:         168488 kB
SwapCached:        384 kB
Active:          49956 kB
Inactive:       158868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776440 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            7012 kB
Writeback:           0 kB
Mapped:          21816 kB
Slab:            56616 kB
Committed_AS:   384916 kB
PageTables:       1436 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= 66328 MiB
End job on node1 at 2009-04-26 17:07:02