Trace number 1807501

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
minisat2-core 070721UNSAT 0.51892 0.519759

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i5_pp.cnf
MD5SUMc15885aa7570af76db584f0c4936c8d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.422935
Satisfiable
(Un)Satisfiability was proved
Number of variables1960
Number of clauses11270
Sum of the clauses size35662
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22945
Number of clauses of size 34500
Number of clauses of size 42881
Number of clauses of size 5940
Number of clauses of size over 54

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  1960                                                 |
0.00/0.00	|  Number of clauses:    11270                                                |
0.00/0.00	|  Parsing time:         0.01         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |    1960    11270    35662 |     3756        0    nan |  0.000 % |
0.00/0.01	|       103 |    1958    11270    35662 |     4132      102      6 |  0.102 % |
0.00/0.02	|       253 |    1954    11270    35662 |     4545      249     10 |  0.357 % |
0.00/0.04	|       478 |    1940    11094    35187 |     5000      466     13 |  1.021 % |
0.00/0.07	|       815 |    1934    11033    35013 |     5500      800     14 |  1.327 % |
0.09/0.12	|      1321 |    1932    11033    35013 |     6050     1304     14 |  1.633 % |
0.09/0.19	|      2081 |    1927    10966    34827 |     6655     2061     14 |  1.684 % |
0.29/0.31	|      3221 |    1927    10966    34827 |     7320     3201     14 |  1.684 % |
0.49/0.51	|      4931 |    1895    10336    32561 |     8052     1889     10 |  4.388 % |
0.49/0.51	===============================================================================
0.49/0.51	restarts              : 9
0.49/0.51	conflicts             : 5009           (9690 /sec)
0.49/0.51	decisions             : 8632           (1.36 % random) (16699 /sec)
0.49/0.51	propagations          : 1319063        (2551769 /sec)
0.49/0.51	conflict literals     : 63858          (35.55 % deleted)
0.49/0.51	Memory used           : 2.79 MB
0.49/0.51	CPU time              : 0.516921 s
0.49/0.51	
0.49/0.51	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-1807501-1242157888/watcher-1807501-1242157888 -o /tmp/evaluation-result-1807501-1242157888/solver-1807501-1242157888 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1807501-1242157888.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 25017
/proc/meminfo: memFree=1351020/2055920 swapFree=4181240/4192956
[pid=25017] ppid=25015 vsize=2184 CPUtime=0
/proc/25017/stat : 25017 (minisat_static) R 25015 25017 24635 0 -1 4194304 219 0 0 0 0 0 0 0 18 0 1 0 243821352 2236416 204 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/25017/statm: 546 204 58 171 0 372 0

[startup+0.0127031 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 25017
/proc/meminfo: memFree=1351020/2055920 swapFree=4181240/4192956
[pid=25017] ppid=25015 vsize=2444 CPUtime=0
/proc/25017/stat : 25017 (minisat_static) R 25015 25017 24635 0 -1 4194304 309 0 0 0 0 0 0 0 18 0 1 0 243821352 2502656 295 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/25017/statm: 611 295 75 171 0 437 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2444

[startup+0.101713 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 25017
/proc/meminfo: memFree=1351020/2055920 swapFree=4181240/4192956
[pid=25017] ppid=25015 vsize=2576 CPUtime=0.09
/proc/25017/stat : 25017 (minisat_static) R 25015 25017 24635 0 -1 4194304 339 0 0 0 9 0 0 0 18 0 1 0 243821352 2637824 324 1992294400 134512640 135213614 4294956256 18446744073709551615 134526939 0 0 4096 3 0 0 0 17 1 0 0
/proc/25017/statm: 644 324 77 171 0 470 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2576

[startup+0.301734 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 25017
/proc/meminfo: memFree=1351020/2055920 swapFree=4181240/4192956
[pid=25017] ppid=25015 vsize=2716 CPUtime=0.29
/proc/25017/stat : 25017 (minisat_static) R 25015 25017 24635 0 -1 4194304 386 0 0 0 29 0 0 0 19 0 1 0 243821352 2781184 371 1992294400 134512640 135213614 4294956256 18446744073709551615 134539020 0 0 4096 3 0 0 0 17 1 0 0
/proc/25017/statm: 679 371 77 171 0 505 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2716

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

[startup+0.501756 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 25017
/proc/meminfo: memFree=1351020/2055920 swapFree=4181240/4192956
[pid=25017] ppid=25015 vsize=2848 CPUtime=0.49
/proc/25017/stat : 25017 (minisat_static) R 25015 25017 24635 0 -1 4194304 403 0 0 0 49 0 0 0 21 0 1 0 243821352 2916352 388 1992294400 134512640 135213614 4294956256 18446744073709551615 134529638 0 0 4096 3 0 0 0 17 1 0 0
/proc/25017/statm: 712 388 77 171 0 538 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 2848

Child status: 20
Real time (s): 0.519759
CPU time (s): 0.51892
CPU user time (s): 0.516921
CPU system time (s): 0.001999
CPU usage (%): 99.8386
Max. virtual memory (cumulated for all children) (KiB): 2848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.516921
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 415
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= 1

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node35 at 2009-05-12 21:51:28
IDJOB=1807501
IDBENCH=71640
IDSOLVER=651
FILE ID=node35/1807501-1242157888
PBS_JOBID= 9289769
Free space on /tmp= 66092 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1807501-1242157888/watcher-1807501-1242157888 -o /tmp/evaluation-result-1807501-1242157888/solver-1807501-1242157888 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1807501-1242157888.cnf

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

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=794577060

node35.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:       1351500 kB
Buffers:         65620 kB
Cached:         564568 kB
SwapCached:       6224 kB
Active:          95408 kB
Inactive:       543404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1351500 kB
SwapTotal:     4192956 kB
SwapFree:      4181240 kB
Dirty:            1252 kB
Writeback:           0 kB
Mapped:          13572 kB
Slab:            51620 kB
Committed_AS:   938292 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= 66092 MiB
End job on node35 at 2009-05-12 21:51:29