Trace number 3094307

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 2011-02-15SAT 0.827873 0.82951

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S707565158-096.SATISFIABLE.cnf
MD5SUM2a8cb5d237e15bd9bba8245975866061
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014996
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 

0.79/0.82	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.82	c input CNF file=HOME/instance-3094307-1301753780.cnf 
0.79/0.82	c Clause#=2130  var#=100  ratio=21 
0.79/0.82	c Simplified clause#=2130 
0.79/0.82	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.82	c inative var#=0 
0.79/0.82	c free var#=100  
0.79/0.82	c local search on 
0.79/0.82	c A solution found by local search 
0.79/0.82	c unfixed var#=0 var#=100 
0.79/0.82	c verified 
0.79/0.82	c 
0.79/0.82	s SATISFIABLE
0.79/0.82	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 
0.79/0.82	v 0
0.79/0.82	c 
0.79/0.82	c  Running time=0.825875

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-3094307-1301753780/watcher-3094307-1301753780 -o /tmp/evaluation-result-3094307-1301753780/solver-3094307-1301753780 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094307-1301753780.cnf 

running on 2 cores: 0,2

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: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=3036 CPUtime=0 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 342 0 0 0 0 0 0 0 25 0 1 0 286977651 3108864 281 33554432000 134512640 134731564 4293725664 18446744073709551615 134571617 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 759 281 231 54 0 69 0

[startup+0.0331249 s]
/proc/loadavg: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=3292 CPUtime=0.03 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 383 0 0 0 3 0 0 0 25 0 1 0 286977651 3371008 322 33554432000 134512640 134731564 4293725664 18446744073709551615 134580506 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 823 322 238 54 0 133 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3292

[startup+0.101027 s]
/proc/loadavg: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=3424 CPUtime=0.09 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 482 0 0 0 9 0 0 0 25 0 1 0 286977651 3506176 421 33554432000 134512640 134731564 4293725664 18446744073709551615 134667331 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 856 421 268 54 0 166 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3424

[startup+0.30104 s]
/proc/loadavg: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=3820 CPUtime=0.29 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 554 0 0 0 29 0 0 0 25 0 1 0 286977651 3911680 493 33554432000 134512640 134731564 4293725664 18446744073709551615 134669560 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 955 493 268 54 0 265 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3820

[startup+0.700991 s]
/proc/loadavg: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=4084 CPUtime=0.69 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 648 0 0 0 69 0 0 0 25 0 1 0 286977651 4182016 587 33554432000 134512640 134731564 4293725664 18446744073709551615 134719966 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 1021 587 268 54 0 331 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4084

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

[startup+0.800965 s]
/proc/loadavg: 3.88 3.98 3.93 3/185 18797
/proc/meminfo: memFree=22327352/32950928 swapFree=67111528/67111528
[pid=18797] ppid=18795 vsize=4216 CPUtime=0.79 cores=0,2
/proc/18797/stat : 18797 (MPhaseSAT) R 18795 18797 18153 0 -1 4202496 679 0 0 0 79 0 0 0 25 0 1 0 286977651 4317184 618 33554432000 134512640 134731564 4293725664 18446744073709551615 134605942 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18797/statm: 1054 618 271 54 0 364 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4216

Child status: 10
Real time (s): 0.82951
CPU time (s): 0.827873
CPU user time (s): 0.824874
CPU system time (s): 0.002999
CPU usage (%): 99.8027
Max. virtual memory (cumulated for all children) (KiB): 4216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.824874
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= 688
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= 3

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-02 16:16:20
IDJOB=3094307
IDBENCH=82789
IDSOLVER=1520
FILE ID=node125/3094307-1301753780
RUNJOBID= node125-1301748570-18171
PBS_JOBID= 12841012
Free space on /tmp= 72132 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S707565158-096.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094307-1301753780/watcher-3094307-1301753780 -o /tmp/evaluation-result-3094307-1301753780/solver-3094307-1301753780 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094307-1301753780.cnf

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

MD5SUM BENCH= 2a8cb5d237e15bd9bba8245975866061
RANDOM SEED=1919040661

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:      22327384 kB
Buffers:        355328 kB
Cached:        9942788 kB
SwapCached:          0 kB
Active:        6527328 kB
Inactive:      3842464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22327384 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             412 kB
Writeback:           0 kB
AnonPages:       71320 kB
Mapped:          16308 kB
Slab:           190084 kB
PageTables:       4800 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   278672 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= 72132 MiB
End job on node125 at 2011-04-02 16:16:21