Trace number 1785223

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 3.9534 3.95735

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 benchmark1.87571
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
1.89/1.96	c WARNING: for repeatability, setting FPU to use double precision
1.89/1.96	c ============================[ Problem Statistics ]=============================
1.89/1.96	c |                                                                             |
1.89/1.97	c |  Number of variables:  90300                                                |
1.89/1.97	c |  Number of clauses:    179700                                               |
2.77/2.81	c |  Parsing time:         0.82         s                                       |
3.77/3.86	c restarts              : 0
3.77/3.86	c conflicts             : 0              (0 /sec)
3.77/3.86	c decisions             : 0              ( nan % random) (0 /sec)
3.77/3.86	c propagations          : 2              (1 /sec)
3.77/3.86	c conflict literals     : 0              ( nan % deleted)
3.77/3.86	c Memory used           : 38.44 MB
3.77/3.86	c CPU time              : 1.84972 s
3.77/3.86	
3.77/3.87	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-1785223-1241898222/watcher-1785223-1241898222 -o /tmp/evaluation-result-1785223-1241898222/solver-1785223-1241898222 -C 5000 -W 6000 -M 1800 IUT_BMB_SAT HOME/instance-1785223-1241898222.cnf HOME 

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 31495
/proc/meminfo: memFree=1694424/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=3392 CPUtime=0
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 193 0 0 0 0 0 0 0 18 0 1 0 217849482 3473408 176 1992294400 134512640 135635285 4294956224 18446744073709551615 134533644 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 848 177 93 274 0 571 0

[startup+0.0836389 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31495
/proc/meminfo: memFree=1694424/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=11168 CPUtime=0.07
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 2583 0 0 0 7 0 0 0 18 0 1 0 217849482 11436032 2566 1992294400 134512640 135635285 4294956224 18446744073709551615 134535607 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 2792 2569 92 274 0 2515 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11168

[startup+0.102641 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31495
/proc/meminfo: memFree=1694424/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=15408 CPUtime=0.09
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 3670 0 0 0 9 0 0 0 18 0 1 0 217849482 15777792 3653 1992294400 134512640 135635285 4294956224 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 3852 3653 99 274 0 3575 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15408

[startup+0.301657 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31495
/proc/meminfo: memFree=1694424/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=18312 CPUtime=0.29
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 4393 0 0 0 28 1 0 0 19 0 1 0 217849482 18751488 4376 1992294400 134512640 135635285 4294956224 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 4578 4376 99 274 0 4301 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18312

[startup+0.702693 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31495
/proc/meminfo: memFree=1694424/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=22404 CPUtime=0.69
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 5422 0 0 0 67 2 0 0 23 0 1 0 217849482 22941696 5405 1992294400 134512640 135635285 4294956224 18446744073709551615 135072790 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 5601 5405 99 274 0 5324 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 22404

[startup+1.50176 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 31496
/proc/meminfo: memFree=1670736/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=24600 CPUtime=1.49
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 5972 0 0 0 112 37 0 0 25 0 1 0 217849482 25190400 5955 1992294400 134512640 135635285 4294956224 18446744073709551615 135132478 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 6150 5955 101 274 0 5873 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24600

[startup+3.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 31498
/proc/meminfo: memFree=1653056/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=24600 CPUtime=1.95
/proc/31495/stat : 31495 (IUT_BMB_SAT) S 31493 31495 31222 0 -1 4194304 5978 0 0 0 128 67 0 0 25 0 1 0 217849482 25190400 5960 1992294400 134512640 135635285 4294956224 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/31495/statm: 6150 5960 106 274 0 5873 0
[pid=31497] ppid=31495 vsize=5356 CPUtime=0
/proc/31497/stat : 31497 (sh) S 31495 31495 31222 0 -1 4194304 270 0 0 0 0 0 0 0 18 0 1 0 217849679 5484544 232 1992294400 4194304 4889804 548682068912 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/31497/statm: 1339 232 193 169 0 50 0
[pid=31498] ppid=31497 vsize=27044 CPUtime=1.13
/proc/31498/stat : 31498 (minisat) R 31497 31495 31222 0 -1 4194304 6455 0 0 0 110 3 0 0 25 0 1 0 217849679 27693056 6427 1992294400 134512640 135243223 4294956320 18446744073709551615 134535299 0 0 4096 3 0 0 0 17 0 0 0
/proc/31498/statm: 6761 6427 78 178 0 6581 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 57000

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

[startup+3.50194 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 31498
/proc/meminfo: memFree=1638656/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=24600 CPUtime=1.95
/proc/31495/stat : 31495 (IUT_BMB_SAT) S 31493 31495 31222 0 -1 4194304 5978 0 0 0 128 67 0 0 25 0 1 0 217849482 25190400 5960 1992294400 134512640 135635285 4294956224 18446744073709551615 135129070 0 65536 4102 0 18446744071563356171 0 0 17 0 0 0
/proc/31495/statm: 6150 5960 106 274 0 5873 0
[pid=31497] ppid=31495 vsize=5356 CPUtime=0
/proc/31497/stat : 31497 (sh) S 31495 31495 31222 0 -1 4194304 270 0 0 0 0 0 0 0 18 0 1 0 217849679 5484544 232 1992294400 4194304 4889804 548682068912 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/31497/statm: 1339 232 193 169 0 50 0
[pid=31498] ppid=31497 vsize=33600 CPUtime=1.53
/proc/31498/stat : 31498 (minisat) R 31497 31495 31222 0 -1 4194304 8007 0 0 0 149 4 0 0 25 0 1 0 217849679 34406400 7979 1992294400 134512640 135243223 4294956320 18446744073709551615 134747750 0 0 4096 3 0 0 0 17 0 0 0
/proc/31498/statm: 8400 7979 78 178 0 8220 0
Current children cumulated CPU time (s) 3.48
Current children cumulated vsize (KiB) 63556

[startup+3.90197 s]
/proc/loadavg: 1.00 1.00 1.00 2/67 31498
/proc/meminfo: memFree=1638656/2055920 swapFree=4181940/4192956
[pid=31495] ppid=31493 vsize=16120 CPUtime=3.87
/proc/31495/stat : 31495 (IUT_BMB_SAT) R 31493 31495 31222 0 -1 4194304 8281 9735 0 0 130 68 184 5 17 0 1 0 217849482 16506880 3841 1992294400 134512640 135635285 4294956224 18446744073709551615 135069098 0 0 4096 0 0 0 0 17 0 0 0
/proc/31495/statm: 4030 3841 107 274 0 3753 0
Current children cumulated CPU time (s) 3.87
Current children cumulated vsize (KiB) 16120

Child status: 0
Real time (s): 3.95735
CPU time (s): 3.9534
CPU user time (s): 3.21251
CPU system time (s): 0.740887
CPU usage (%): 99.9002
Max. virtual memory (cumulated for all children) (KiB): 67780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.21251
system time used= 0.740887
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18021
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= 18

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node58 at 2009-05-09 21:43:43
IDJOB=1785223
IDBENCH=24728
IDSOLVER=638
FILE ID=node58/1785223-1241898222
PBS_JOBID= 9264757
Free space on /tmp= 66132 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-1785223-1241898222/watcher-1785223-1241898222 -o /tmp/evaluation-result-1785223-1241898222/solver-1785223-1241898222 -C 5000 -W 6000 -M 1800  IUT_BMB_SAT HOME/instance-1785223-1241898222.cnf HOME

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

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1186968282

node58.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		: 3000.233
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		: 3000.233
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:       1694904 kB
Buffers:         38012 kB
Cached:         258496 kB
SwapCached:       4936 kB
Active:          91776 kB
Inactive:       213232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1694904 kB
SwapTotal:     4192956 kB
SwapFree:      4181940 kB
Dirty:            7296 kB
Writeback:           0 kB
Mapped:          14708 kB
Slab:            42072 kB
Committed_AS:   672912 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= 66124 MiB
End job on node58 at 2009-05-09 21:43:47