Trace number 3445827

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 2011-02-15UNSAT 4.20736 4.32065

General information on the benchmark

NameSAT03/handmade/bevan/cnf/
marg3x3add8ch.shuffled-as.sat03-1448.cnf
MD5SUMe5a54c3916792cf58c449b6e5b243188
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.001998
Satisfiable
(Un)Satisfiability was proved
Number of variables41
Number of clauses272
Sum of the clauses size1424
Maximum clause length6
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316
Number of clauses of size 432
Number of clauses of size 596
Number of clauses of size over 5128

Solver Data 

4.20/4.32	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
4.20/4.32	c input CNF file=HOME/instance-3445827-1306982847.cnf 
4.20/4.32	c Clause#=272  var#=41  ratio=6 
4.20/4.32	c Simplified clause#=272 
4.20/4.32	c XOR_varElimination deleted var#=0 clauses#=272 
4.20/4.32	c inative var#=0 
4.20/4.32	c free var#=41  
4.20/4.32	c local search off 
4.20/4.32	c height=10 age=69 
4.20/4.32	c 
4.20/4.32	s UNSATISFIABLE
4.20/4.32	c 
4.20/4.32	c  Running time=4.202361

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3445827-1306982847/watcher-3445827-1306982847 -o /tmp/evaluation-result-3445827-1306982847/solver-3445827-1306982847 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445827-1306982847.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): 5100 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: 0.93 1.00 0.99 2/510 29288
/proc/meminfo: memFree=23498376/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=11796 CPUtime=0 cores=0,2,4,6
/proc/29288/stat : 29288 (runsolver) D 29286 29288 28034 0 -1 4202560 46 0 0 0 0 0 0 0 22 0 1 0 888515395 12079104 53 33554432000 4194304 5432328 140736969209984 18446744073709551615 5055479 0 0 4096 24578 18446744071562154983 0 0 17 4 0 0 0
/proc/29288/statm: 2949 53 34 303 0 2643 0

[startup+0.0980721 s]
/proc/loadavg: 0.93 1.00 0.99 2/510 29288
/proc/meminfo: memFree=23498376/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=2944 CPUtime=0 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) D 29286 29288 28034 0 -1 4194304 90 0 6 0 0 0 0 0 22 0 1 0 888515395 3014656 50 33554432000 134512640 134731564 4286654432 18446744073709551615 3165351 0 0 4096 0 18446744071562234166 0 0 17 6 0 0 8
/proc/29288/statm: 736 50 39 54 0 30 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2944

[startup+0.101129 s]
/proc/loadavg: 0.93 1.00 0.99 2/510 29288
/proc/meminfo: memFree=23498376/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=2944 CPUtime=0 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) D 29286 29288 28034 0 -1 4194304 92 0 7 0 0 0 0 0 22 0 1 0 888515395 3014656 53 33554432000 134512640 134731564 4286654432 18446744073709551615 3164147 0 0 4096 0 18446744071562234166 0 0 17 6 0 0 9
/proc/29288/statm: 736 53 41 54 0 33 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2944

[startup+0.301023 s]
/proc/loadavg: 0.93 1.00 0.99 2/510 29288
/proc/meminfo: memFree=23498376/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=3696 CPUtime=0.18 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 507 0 17 0 18 0 0 0 22 0 1 0 888515395 3784704 464 33554432000 134512640 134731564 4286654432 18446744073709551615 134673277 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 924 464 270 54 0 234 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 3696

[startup+0.700947 s]
/proc/loadavg: 0.93 1.00 0.99 2/510 29288
/proc/meminfo: memFree=23498376/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=3728 CPUtime=0.58 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 544 0 17 0 58 0 0 0 23 0 1 0 888515395 3817472 501 33554432000 134512640 134731564 4286654432 18446744073709551615 134709984 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 932 501 270 54 0 242 0
Current children cumulated CPU time (s) 0.58
Current children cumulated vsize (KiB) 3728

[startup+1.50079 s]
/proc/loadavg: 0.93 1.00 0.99 4/516 29324
/proc/meminfo: memFree=23487004/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=4048 CPUtime=1.38 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 636 0 17 0 138 0 0 0 25 0 1 0 888515395 4145152 577 33554432000 134512640 134731564 4286654432 18446744073709551615 134720137 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 1012 577 270 54 0 322 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 4048

[startup+3.10049 s]
/proc/loadavg: 0.93 1.00 0.99 3/516 29324
/proc/meminfo: memFree=23484160/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=4012 CPUtime=2.98 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 636 0 17 0 298 0 0 0 25 0 1 0 888515395 4108288 571 33554432000 134512640 134731564 4286654432 18446744073709551615 134660003 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 1003 571 270 54 0 313 0
Current children cumulated CPU time (s) 2.98
Current children cumulated vsize (KiB) 4012

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

[startup+3.90034 s]
/proc/loadavg: 1.02 1.02 1.00 3/516 29324
/proc/meminfo: memFree=23483788/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=4116 CPUtime=3.78 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 656 0 17 0 378 0 0 0 25 0 1 0 888515395 4214784 591 33554432000 134512640 134731564 4286654432 18446744073709551615 134727035 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 1029 591 270 54 0 339 0
Current children cumulated CPU time (s) 3.78
Current children cumulated vsize (KiB) 4116

[startup+4.30026 s]
/proc/loadavg: 1.02 1.02 1.00 3/516 29324
/proc/meminfo: memFree=23483912/32950928 swapFree=58671692/67111528
[pid=29288] ppid=29286 vsize=4532 CPUtime=4.2 cores=0,2,4,6
/proc/29288/stat : 29288 (MPhaseSAT) R 29286 29288 28034 0 -1 4202496 733 0 17 0 420 0 0 0 25 0 1 0 888515395 4640768 668 33554432000 134512640 134731564 4286654432 18446744073709551615 134659012 0 0 4096 1026 0 0 0 17 2 0 0 11
/proc/29288/statm: 1133 668 270 54 0 443 0
Current children cumulated CPU time (s) 4.2
Current children cumulated vsize (KiB) 4532

Child status: 20
Real time (s): 4.32065
CPU time (s): 4.20736
CPU user time (s): 4.20436
CPU system time (s): 0.002999
CPU usage (%): 97.3779
Max. virtual memory (cumulated for all children) (KiB): 4532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.20436
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 741
page faults= 17
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 119
involuntary context switches= 10

runsolver used 0.023996 second user time and 0.067989 second system time

The end

Launcher Data 

Begin job on node115 at 2011-06-02 04:47:27
IDJOB=3445827
IDBENCH=84096
IDSOLVER=1941
FILE ID=node115/3445827-1306982847
RUNJOBID= node115-1306982847-29276
PBS_JOBID= 13497655
Free space on /tmp= 73768 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8ch.shuffled-as.sat03-1448.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445827-1306982847/watcher-3445827-1306982847 -o /tmp/evaluation-result-3445827-1306982847/solver-3445827-1306982847 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445827-1306982847.cnf

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

MD5SUM BENCH= e5a54c3916792cf58c449b6e5b243188
RANDOM SEED=1505118240

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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	: 5226.15
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		: 2666.811
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	: 5332.75
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		: 2666.811
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	: 5332.75
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		: 2666.811
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	: 5332.77
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      23498408 kB
Buffers:         36500 kB
Cached:          93236 kB
SwapCached:      65540 kB
Active:         934940 kB
Inactive:      8284444 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      23498408 kB
SwapTotal:    67111528 kB
SwapFree:     58671692 kB
Dirty:             148 kB
Writeback:           0 kB
AnonPages:     9027804 kB
Mapped:          26856 kB
Slab:            88628 kB
PageTables:      75664 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 151808652 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= 73768 MiB
End job on node115 at 2011-06-02 04:47:32