Trace number 1784199

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)SAT 2.34064 2.34276

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK09.cnf
MD5SUM167bdfed21466d25646b3f9481920143
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024995
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses15120
Sum of the clauses size181440
Maximum clause length12
Minimum clause length12
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 515120

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 |                                                                             |
0.00/0.03	c |  Number of variables:            36                                         |
0.00/0.03	c |  Number of clauses:           15120                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
2.29/2.34	c |  Simplification time:          2.31 s                                       |
2.29/2.34	c |                                                                             |
2.29/2.34	c ============================[ Search Statistics ]==============================
2.29/2.34	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
2.29/2.34	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
2.29/2.34	c ===============================================================================
2.29/2.34	c ===============================================================================
2.29/2.34	c restarts              : 1
2.29/2.34	c conflicts             : 0              (0 /sec)
2.29/2.34	c decisions             : 27             (12 /sec)
2.29/2.34	c propagations          : 36             (15 /sec)
2.29/2.34	c conflict literals     : 0              ( nan % deleted)
2.29/2.34	c Memory used           : 8.52 MB
2.29/2.34	c CPU time              : 2.33365 s
2.29/2.34	c 
2.29/2.34	s SATISFIABLE
2.29/2.34	v -1 2 3 4 5 6 -7 -8 9 10 11 12 13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1784199-1241924858/watcher-1784199-1241924858 -o /tmp/evaluation-result-1784199-1241924858/solver-1784199-1241924858 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784199-1241924858.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 30533
/proc/meminfo: memFree=1617976/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=7468 CPUtime=0
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 306 0 0 0 0 0 0 0 18 0 1 0 220519008 7647232 290 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 1867 290 63 219 0 1645 0

[startup+0.0866299 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30533
/proc/meminfo: memFree=1617976/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=0.07
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 7 0 0 0 18 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219793 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8716

[startup+0.101631 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30533
/proc/meminfo: memFree=1617976/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=0.09
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 9 0 0 0 18 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219791 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8716

[startup+0.301654 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30533
/proc/meminfo: memFree=1617976/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=0.29
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 29 0 0 0 19 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219693 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8716

[startup+0.7017 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30533
/proc/meminfo: memFree=1617976/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=0.69
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 69 0 0 0 22 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219516 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8716

[startup+1.50179 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30534
/proc/meminfo: memFree=1615024/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=1.49
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 149 0 0 0 25 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219753 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8716

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

[startup+1.90184 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30534
/proc/meminfo: memFree=1615024/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=1.89
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 189 0 0 0 25 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219685 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 8716

[startup+2.30188 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30534
/proc/meminfo: memFree=1614768/2055920 swapFree=4121000/4192956
[pid=30533] ppid=30531 vsize=8716 CPUtime=2.29
/proc/30533/stat : 30533 (minisat) R 30531 30533 27068 0 -1 4194304 829 0 0 0 229 0 0 0 25 0 1 0 220519008 8925184 813 1992294400 4194304 5092341 548682068848 18446744073709551615 4219791 0 0 4096 3 0 0 0 17 1 0 0
/proc/30533/statm: 2179 813 87 219 0 1957 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 8716

Child status: 10
Real time (s): 2.34276
CPU time (s): 2.34064
CPU user time (s): 2.33365
CPU system time (s): 0.006998
CPU usage (%): 99.9096
Max. virtual memory (cumulated for all children) (KiB): 8716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.33364
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1036
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= 11

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-10 05:07:38
IDJOB=1784199
IDBENCH=71125
IDSOLVER=608
FILE ID=node20/1784199-1241924858
PBS_JOBID= 9264857
Free space on /tmp= 66392 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK09.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784199-1241924858/watcher-1784199-1241924858 -o /tmp/evaluation-result-1784199-1241924858/solver-1784199-1241924858 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784199-1241924858.cnf

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

MD5SUM BENCH= 167bdfed21466d25646b3f9481920143
RANDOM SEED=1021240302

node20.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	: 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		: 3000.214
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:       1618456 kB
Buffers:         57592 kB
Cached:         245320 kB
SwapCached:      66328 kB
Active:         137232 kB
Inactive:       233776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618456 kB
SwapTotal:     4192956 kB
SwapFree:      4121000 kB
Dirty:            1580 kB
Writeback:           0 kB
Mapped:          13564 kB
Slab:            52516 kB
Committed_AS:   826264 kB
PageTables:       1396 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= 66388 MiB
End job on node20 at 2009-05-10 05:07:40