Trace number 3221426

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
MPhaseSAT_M 2011-02-16SAT 1.44078 1.44096

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v70-c6230-S1321356000-046.SATISFIABLE.cnf
MD5SUMf10effcfe58940a6abd6aa73030d7c70
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.185971
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses6230
Sum of the clauses size43610
Maximum clause length7
Minimum clause length7
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 56230

Solver Data 

1.39/1.44	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.39/1.44	c input CNF file=HOME/instance-3221426-1303294624.cnf 
1.39/1.44	c Clause#=6230  var#=70  ratio=89 
1.39/1.44	c Simplified clause#=6230 
1.39/1.44	c XOR_varElimination deleted var#=0 clauses#=6230 
1.39/1.44	c inative var#=0 
1.39/1.44	c free var#=70  
1.39/1.44	c local search on 
1.39/1.44	c A solution found by local search 
1.39/1.44	c unfixed var#=0 var#=70 
1.39/1.44	c verified 
1.39/1.44	c 
1.39/1.44	s SATISFIABLE
1.39/1.44	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 37 -38 39 40 -41 -42 -43 44 45 -46 47 -48 -49 50 51 52 53 54 55 56 -57 58 59 -60 -61 62 -63 -64 65 66 67 68 69 70 
1.39/1.44	v 0
1.39/1.44	c 
1.39/1.44	c  Running time=1.438781

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3221426-1303294624/watcher-3221426-1303294624 -o /tmp/evaluation-result-3221426-1303294624/solver-3221426-1303294624 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221426-1303294624.cnf 

running on 4 cores: 0,2,4,6

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): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.98 1.99 2/177 23827
/proc/meminfo: memFree=17607768/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=3288 CPUtime=0 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 337 0 0 0 0 0 0 0 25 0 1 0 441062074 3366912 278 33554432000 134512640 134829744 4290023152 18446744073709551615 134531753 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 822 278 225 78 0 108 0

[startup+0.058085 s]
/proc/loadavg: 1.92 1.98 1.99 2/177 23827
/proc/meminfo: memFree=17607768/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=4220 CPUtime=0.05 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 774 0 0 0 5 0 0 0 25 0 1 0 441062074 4321280 589 33554432000 134512640 134829744 4290023152 18446744073709551615 134661432 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1055 589 270 78 0 341 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4220

[startup+0.101077 s]
/proc/loadavg: 1.92 1.98 1.99 2/177 23827
/proc/meminfo: memFree=17607768/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=4484 CPUtime=0.09 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 825 0 0 0 9 0 0 0 25 0 1 0 441062074 4591616 640 33554432000 134512640 134829744 4290023152 18446744073709551615 134661818 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1121 640 270 78 0 407 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4484

[startup+0.301093 s]
/proc/loadavg: 1.92 1.98 1.99 2/177 23827
/proc/meminfo: memFree=17607768/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=4616 CPUtime=0.29 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 884 0 0 0 29 0 0 0 25 0 1 0 441062074 4726784 699 33554432000 134512640 134829744 4290023152 18446744073709551615 134661645 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1154 699 270 78 0 440 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4616

[startup+0.701024 s]
/proc/loadavg: 1.92 1.98 1.99 2/177 23827
/proc/meminfo: memFree=17607768/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=5012 CPUtime=0.69 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 970 0 0 0 69 0 0 0 25 0 1 0 441062074 5132288 785 33554432000 134512640 134829744 4290023152 18446744073709551615 134669387 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1253 785 270 78 0 539 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5012

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

[startup+1.10601 s]
/proc/loadavg: 1.92 1.98 1.99 3/178 23828
/proc/meminfo: memFree=17605544/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=5408 CPUtime=1.1 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 1048 0 0 0 110 0 0 0 25 0 1 0 441062074 5537792 863 33554432000 134512640 134829744 4290023152 18446744073709551615 134605832 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1352 863 273 78 0 638 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 5408

[startup+1.30098 s]
/proc/loadavg: 1.92 1.98 1.99 3/178 23828
/proc/meminfo: memFree=17605544/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=5408 CPUtime=1.29 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 1048 0 0 0 129 0 0 0 25 0 1 0 441062074 5537792 863 33554432000 134512640 134829744 4290023152 18446744073709551615 134606340 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1352 863 273 78 0 638 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 5408

[startup+1.4009 s]
/proc/loadavg: 1.92 1.98 1.99 3/178 23828
/proc/meminfo: memFree=17605544/32950928 swapFree=67111528/67111528
[pid=23827] ppid=23825 vsize=5408 CPUtime=1.39 cores=0,2,4,6
/proc/23827/stat : 23827 (MPhaseSAT_M) R 23825 23827 22903 0 -1 4202496 1048 0 0 0 139 0 0 0 25 0 1 0 441062074 5537792 863 33554432000 134512640 134829744 4290023152 18446744073709551615 134606545 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/23827/statm: 1352 863 273 78 0 638 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 5408

Child status: 10
Real time (s): 1.44096
CPU time (s): 1.44078
CPU user time (s): 1.43678
CPU system time (s): 0.003999
CPU usage (%): 99.9873
Max. virtual memory (cumulated for all children) (KiB): 5408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.43678
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1057
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= 6
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-20 12:17:04
IDJOB=3221426
IDBENCH=82921
IDSOLVER=1637
FILE ID=node125/3221426-1303294624
RUNJOBID= node125-1303279577-22921
PBS_JOBID= 13049533
Free space on /tmp= 72424 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k7-r89-v70-c6230-S1321356000-046.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221426-1303294624/watcher-3221426-1303294624 -o /tmp/evaluation-result-3221426-1303294624/solver-3221426-1303294624 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221426-1303294624.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= f10effcfe58940a6abd6aa73030d7c70
RANDOM SEED=1321474450

node125.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.65
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5266.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.828
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      17607800 kB
Buffers:        705936 kB
Cached:       13678512 kB
SwapCached:          0 kB
Active:        6836420 kB
Inactive:      8156812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17607800 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:      608660 kB
Mapped:          16128 kB
Slab:           284612 kB
PageTables:       5752 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   862024 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72424 MiB
End job on node125 at 2011-04-20 12:17:06