Trace number 3094866

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
MPhaseSAT64 2011-03-03SAT 0.885864 0.887752

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S20037494-023.SATISFIABLE.cnf
MD5SUM8d71ad1b25bd6c4021d51959610734bb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses2130
Sum of the clauses size10650
Maximum clause length5
Minimum clause length5
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 52130
Number of clauses of size over 50

Solver Data 

0.79/0.88	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.88	c input CNF file=HOME/instance-3094866-1301752923.cnf 
0.79/0.88	c Clause#=2130  var#=100  ratio=21 
0.79/0.88	c Simplified clause#=2130 
0.79/0.88	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.88	c inative var#=0 
0.79/0.88	c free var#=100  
0.79/0.88	c local search on 
0.79/0.88	c A solution found by local search 
0.79/0.88	c unfixed var#=0 var#=100 
0.79/0.88	c verified 
0.79/0.88	c 
0.79/0.88	s SATISFIABLE
0.79/0.88	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 -71 -72 -73 74 -75 76 77 78 79 -80 81 82 83 -84 85 -86 -87 88 89 -90 91 92 -93 -94 -95 -96 97 -98 -99 100 
0.79/0.88	v 0
0.79/0.88	c 
0.79/0.88	c  Running time=0.883866

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3094866-1301752923/watcher-3094866-1301752923 -o /tmp/evaluation-result-3094866-1301752923/solver-3094866-1301752923 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094866-1301752923.cnf 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=3068 CPUtime=0 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 325 0 0 0 0 0 0 0 25 0 1 0 286892711 3141632 264 33554432000 134512640 134761588 4294529136 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 767 264 225 61 0 70 0

[startup+0.0763101 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=3508 CPUtime=0.07 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 483 0 0 0 7 0 0 0 25 0 1 0 286892711 3592192 421 33554432000 134512640 134761588 4294529136 18446744073709551615 134618064 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 877 421 268 61 0 180 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3508

[startup+0.100305 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=3704 CPUtime=0.09 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 553 0 0 0 9 0 0 0 25 0 1 0 286892711 3792896 491 33554432000 134512640 134761588 4294529136 18446744073709551615 134747545 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 926 491 273 61 0 229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3704

[startup+0.300269 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=5584 CPUtime=0.29 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 1024 0 0 0 29 0 0 0 25 0 1 0 286892711 5718016 962 33554432000 134512640 134761588 4294529136 18446744073709551615 134636797 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 1396 962 274 61 0 699 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5584

[startup+0.700194 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=5588 CPUtime=0.69 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 1313 0 0 0 69 0 0 0 25 0 1 0 286892711 5722112 963 33554432000 134512640 134761588 4294529136 18446744073709551615 134747171 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 1397 963 274 61 0 700 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5588

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

[startup+0.800189 s]
/proc/loadavg: 3.96 4.00 3.92 4/189 13436
/proc/meminfo: memFree=21674700/32951124 swapFree=67111528/67111528
[pid=13436] ppid=13434 vsize=5588 CPUtime=0.79 cores=5,7
/proc/13436/stat : 13436 (MPhaseSAT64) R 13434 13436 12822 0 -1 4202496 1316 0 0 0 79 0 0 0 25 0 1 0 286892711 5722112 966 33554432000 134512640 134761588 4294529136 18446744073709551615 134605536 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13436/statm: 1397 966 277 61 0 700 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5588

Child status: 10
Real time (s): 0.887752
CPU time (s): 0.885864
CPU user time (s): 0.882865
CPU system time (s): 0.002999
CPU usage (%): 99.7873
Max. virtual memory (cumulated for all children) (KiB): 5712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.882865
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= 1325
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= 12
involuntary context switches= 10

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node104 at 2011-04-02 16:02:03
IDJOB=3094866
IDBENCH=82748
IDSOLVER=1521
FILE ID=node104/3094866-1301752923
RUNJOBID= node104-1301748573-12843
PBS_JOBID= 12841032
Free space on /tmp= 71948 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S20037494-023.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094866-1301752923/watcher-3094866-1301752923 -o /tmp/evaluation-result-3094866-1301752923/solver-3094866-1301752923 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094866-1301752923.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 8d71ad1b25bd6c4021d51959610734bb
RANDOM SEED=1086154628

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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	: 5332.83
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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	: 5332.83
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21674980 kB
Buffers:        335472 kB
Cached:       10555468 kB
SwapCached:          0 kB
Active:        7244000 kB
Inactive:      3774116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21674980 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             428 kB
Writeback:           0 kB
AnonPages:      126816 kB
Mapped:          16808 kB
Slab:           192932 kB
PageTables:       5336 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   318828 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= 71948 MiB
End job on node104 at 2011-04-02 16:02:04