Trace number 1775347

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
MXC 2009-03-10UNSAT 1.39979 1.40071

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.876865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.29/1.39	c starting MXC with:
1.29/1.39	c cnf_path = HOME/instance-1775347-1241311335.cnf
1.29/1.39	c restart_strategy = auto
1.29/1.39	c sign_strategy = cached
1.29/1.39	c use_preprocessing = -1
1.29/1.39	c output_implicant = 1
1.29/1.39	c timeout_seconds = 0
1.29/1.39	c running SatELite... done
1.29/1.39	c 18801 vars eliminated
1.29/1.39	c received 1 units and 30521 clauses from SatELite
1.29/1.39	c 18801 assignments made, starting to guess now
1.29/1.39	c ===================================[MXC]=====================================
1.29/1.39	c | Conflicts |                Clause Statistics                   |   Vars   |
1.29/1.39	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
1.29/1.39	c =============================================================================
1.29/1.39	c |         0 |       0    5233    25288        0        0     nan |    23891 |
1.29/1.39	c |       100 |       0    5187    24704       96     1050    11.6 |     5046 |
1.29/1.39	c |       210 |       0    5191    24704      202     1105    10.9 |     5046 |
1.29/1.39	c |       441 |       0    5186    24686      429     1220    12.1 |     5043 |
1.29/1.39	c |       805 |       0    5198    24675      758     1402    12.6 |     5042 |
1.29/1.39	c |      1315 |       0    5209    24675     1257     1657    15.7 |     5042 |
1.29/1.39	c |      1986 |       0    5220    24675     1917     1993    15.7 |     5042 |
1.29/1.39	c |      2834 |       0    5136    23799     1611     2417    15.6 |     4944 |
1.29/1.39	c |      3876 |       0    5138    23799     2651     2938    16.5 |     4944 |
1.29/1.39	c |      5132 |       0    5141    23799     2292     3566    15.9 |     4944 |
1.29/1.39	c |      6623 |       0    5153    23799     3771     4311    16.7 |     4944 |
1.29/1.39	c |      8373 |       0    5157    23799     3110     5186    18.0 |     4944 |
1.29/1.39	c |     10408 |       0    5179    23799     5123     6204    16.1 |     4944 |
1.29/1.39	c |     12592 |       0    5209    23799     7270     7296    14.2 |     4914 |
1.29/1.39	c ----- stats for thread 0 -----
1.29/1.39	c restarts: 78
1.29/1.39	c decisions: 55043
1.29/1.39	c propagations: 1236455
1.29/1.39	c conflicts: 12592
1.29/1.39	c 1.395s elapsed
1.29/1.39	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-1775347-1241311335/watcher-1775347-1241311335 -o /tmp/evaluation-result-1775347-1241311335/solver-1775347-1241311335 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1775347-1241311335.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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 29379
/proc/meminfo: memFree=903352/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=3996 CPUtime=0
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 734 0 0 0 0 0 0 0 18 0 1 0 159160666 4091904 720 1992294400 134512640 135192793 4294956224 18446744073709551615 134527828 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 1064 725 50 166 0 895 0

[startup+0.0545479 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29379
/proc/meminfo: memFree=903352/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=10388 CPUtime=0.04
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 2112 0 0 0 4 0 0 0 18 0 1 0 159160666 10637312 2098 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 2597 2099 54 166 0 2428 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 10388

[startup+0.101551 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29379
/proc/meminfo: memFree=903352/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=11128 CPUtime=0.09
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 2561 0 0 0 8 1 0 0 18 0 1 0 159160666 11395072 2276 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 2782 2277 56 166 0 2613 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11128

[startup+0.30157 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29379
/proc/meminfo: memFree=903352/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=16768 CPUtime=0.29
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 3982 0 0 0 28 1 0 0 19 0 1 0 159160666 17170432 3697 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 4192 3697 56 166 0 4023 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16768

[startup+0.701608 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29379
/proc/meminfo: memFree=903352/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=18420 CPUtime=0.69
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 4681 0 0 0 68 1 0 0 22 0 1 0 159160666 18862080 4155 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 4605 4155 72 166 0 4436 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18420

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

[startup+1.10565 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29380
/proc/meminfo: memFree=886704/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=18948 CPUtime=1.09
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 4817 0 0 0 108 1 0 0 25 0 1 0 159160666 19402752 4291 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 4737 4291 73 166 0 4568 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 18948

[startup+1.30166 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29380
/proc/meminfo: memFree=886704/2055920 swapFree=4192812/4192956
[pid=29379] ppid=29377 vsize=19212 CPUtime=1.29
/proc/29379/stat : 29379 (mxc-sat09) R 29377 29379 29143 0 -1 4194304 4886 0 0 0 127 2 0 0 25 0 1 0 159160666 19673088 4360 1992294400 134512640 135192793 4294956224 18446744073709551615 134534231 0 0 4096 0 0 0 0 17 1 0 0
/proc/29379/statm: 4803 4360 73 166 0 4634 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 19212

Child status: 20
Real time (s): 1.40071
CPU time (s): 1.39979
CPU user time (s): 1.37379
CPU system time (s): 0.025996
CPU usage (%): 99.9342
Max. virtual memory (cumulated for all children) (KiB): 19212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.37379
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4958
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= 0

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-05-03 02:42:15
IDJOB=1775347
IDBENCH=71734
IDSOLVER=613
FILE ID=node61/1775347-1241311335
PBS_JOBID= 9225230
Free space on /tmp= 66528 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775347-1241311335/watcher-1775347-1241311335 -o /tmp/evaluation-result-1775347-1241311335/solver-1775347-1241311335 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1775347-1241311335.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=1961432241

node61.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		: 3000.216
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		: 3000.216
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:        903768 kB
Buffers:         74360 kB
Cached:         985216 kB
SwapCached:          0 kB
Active:         125024 kB
Inactive:       948380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        903768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:          23592 kB
Slab:            64784 kB
Committed_AS:   729996 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66528 MiB
End job on node61 at 2009-05-03 02:42:17