Trace number 1784499

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 1.90071 1.90175

General information on the benchmark

NameCRAFTED/parity-games/
instance_n5_i6_pp_ci_ce.cnf
MD5SUM2cb95a73fc66a1c6328b2127a33b0a14
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.72874
Satisfiable
(Un)Satisfiability was proved
Number of variables4380
Number of clauses31980
Sum of the clauses size102772
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 27508
Number of clauses of size 313398
Number of clauses of size 47973
Number of clauses of size 53006
Number of clauses of size over 595

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 |                                                                             |
0.01/0.03	c |  Number of variables:          4380                                         |
0.01/0.03	c |  Number of clauses:           31980                                         |
0.01/0.03	c |  Parse time:                   0.03 s                                       |
0.01/0.10	c |  Simplification time:          0.07 s                                       |
0.01/0.10	c |                                                                             |
0.01/0.10	c ============================[ Search Statistics ]==============================
0.01/0.10	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.10	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.10	c ===============================================================================
0.09/0.10	c |       100 |    2915    24813    81034 |     9098       99     11 |  2.078 % |
0.09/0.11	c |       250 |    2915    24813    81034 |    10007      249     14 |  2.078 % |
0.09/0.13	c |       475 |    2915    24813    81034 |    11008      474     13 |  2.078 % |
0.09/0.15	c |       812 |    2915    24809    81026 |    12109      811     14 |  2.078 % |
0.09/0.18	c |      1318 |    2915    24809    81026 |    13320     1317     17 |  2.078 % |
0.19/0.22	c |      2077 |    2915    24809    81026 |    14652     2076     18 |  2.078 % |
0.29/0.30	c |      3216 |    2915    24809    81026 |    16117     3215     21 |  2.078 % |
0.39/0.45	c |      4924 |    2915    24809    81026 |    17729     4923     21 |  2.078 % |
0.69/0.76	c |      7486 |    2915    24809    81026 |    19502     7485     23 |  2.078 % |
1.19/1.20	c |     11330 |    2915    24809    81026 |    21452    11329     24 |  2.078 % |
1.79/1.90	c ===============================================================================
1.79/1.90	c restarts              : 62
1.79/1.90	c conflicts             : 15835          (8353 /sec)
1.79/1.90	c decisions             : 32447          (17116 /sec)
1.79/1.90	c propagations          : 4264096        (2249339 /sec)
1.79/1.90	c conflict literals     : 380324         (41.60 % deleted)
1.79/1.90	c Memory used           : 9.36 MB
1.79/1.90	c CPU time              : 1.89571 s
1.79/1.90	c 
1.79/1.90	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-1784499-1241948465/watcher-1784499-1241948465 -o /tmp/evaluation-result-1784499-1241948465/solver-1784499-1241948465 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784499-1241948465.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 29221
/proc/meminfo: memFree=911152/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=8192 CPUtime=0
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 439 0 0 0 0 0 0 0 18 0 1 0 222873278 8388608 423 1992294400 4194304 5092341 548682068848 18446744073709551615 4215042 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2048 423 63 219 0 1826 0

[startup+0.0116011 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29221
/proc/meminfo: memFree=911152/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=8192 CPUtime=0.01
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 510 0 0 0 1 0 0 0 18 0 1 0 222873278 8388608 494 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2048 495 63 219 0 1826 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8192

[startup+0.101616 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29221
/proc/meminfo: memFree=911152/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9308 CPUtime=0.09
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1100 0 0 0 9 0 0 0 18 0 1 0 222873278 9531392 860 1992294400 4194304 5092341 548682068848 18446744073709551615 4352740 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2327 860 92 219 0 2105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9308

[startup+0.301652 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29221
/proc/meminfo: memFree=911152/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9308 CPUtime=0.29
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1179 0 0 0 29 0 0 0 19 0 1 0 222873278 9531392 939 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2327 939 100 219 0 2105 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9308

[startup+0.701724 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29221
/proc/meminfo: memFree=911152/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9308 CPUtime=0.69
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1278 0 0 0 69 0 0 0 22 0 1 0 222873278 9531392 1038 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2327 1038 100 219 0 2105 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9308

[startup+1.50187 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29222
/proc/meminfo: memFree=907112/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9452 CPUtime=1.49
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1480 0 0 0 149 0 0 0 25 0 1 0 222873278 9678848 1240 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2363 1240 100 219 0 2141 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9452

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

[startup+1.7019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29222
/proc/meminfo: memFree=907112/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9584 CPUtime=1.69
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1525 0 0 0 169 0 0 0 25 0 1 0 222873278 9814016 1285 1992294400 4194304 5092341 548682068848 18446744073709551615 4240843 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2396 1285 100 219 0 2174 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 9584

[startup+1.80192 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29222
/proc/meminfo: memFree=907112/2055920 swapFree=4175260/4192956
[pid=29221] ppid=29219 vsize=9584 CPUtime=1.79
/proc/29221/stat : 29221 (minisat) R 29219 29221 28870 0 -1 4194304 1547 0 0 0 179 0 0 0 25 0 1 0 222873278 9814016 1307 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/29221/statm: 2396 1307 100 219 0 2174 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 9584

Child status: 20
Real time (s): 1.90175
CPU time (s): 1.90071
CPU user time (s): 1.89571
CPU system time (s): 0.004999
CPU usage (%): 99.9455
Max. virtual memory (cumulated for all children) (KiB): 9584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.89571
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= 1577
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= 3

runsolver used 0.001999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node60 at 2009-05-10 11:41:05
IDJOB=1784499
IDBENCH=71626
IDSOLVER=608
FILE ID=node60/1784499-1241948465
PBS_JOBID= 9265045
Free space on /tmp= 66040 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784499-1241948465/watcher-1784499-1241948465 -o /tmp/evaluation-result-1784499-1241948465/solver-1784499-1241948465 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784499-1241948465.cnf

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

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=1360841114

node60.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		: 3000.256
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		: 3000.256
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:        911568 kB
Buffers:         71504 kB
Cached:         977716 kB
SwapCached:      12124 kB
Active:         400308 kB
Inactive:       663556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        911568 kB
SwapTotal:     4192956 kB
SwapFree:      4175260 kB
Dirty:            1684 kB
Writeback:           0 kB
Mapped:          14084 kB
Slab:            66428 kB
Committed_AS:   765516 kB
PageTables:       1448 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= 66040 MiB
End job on node60 at 2009-05-10 11:41:07