Trace number 3094224

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 1.3418 1.34385

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v70-c6230-S944754256-018.SATISFIABLE.cnf
MD5SUMdb18d6e256ea6948d91cc6cd8858dc3d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.400938
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 

1.29/1.34	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.29/1.34	c input CNF file=HOME/instance-3094224-1301752498.cnf 
1.29/1.34	c Clause#=6230  var#=70  ratio=89 
1.29/1.34	c Simplified clause#=6230 
1.29/1.34	c XOR_varElimination deleted var#=0 clauses#=6230 
1.29/1.34	c inative var#=0 
1.29/1.34	c free var#=70  
1.29/1.34	c local search on 
1.29/1.34	c A solution found by local search 
1.29/1.34	c unfixed var#=0 var#=70 
1.29/1.34	c verified 
1.29/1.34	c 
1.29/1.34	s SATISFIABLE
1.29/1.34	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 
1.29/1.34	v 0
1.29/1.34	c 
1.29/1.34	c  Running time=1.338797

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-3094224-1301752498/watcher-3094224-1301752498 -o /tmp/evaluation-result-3094224-1301752498/solver-3094224-1301752498 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094224-1301752498.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: 3.84 3.97 3.90 4/185 10845
/proc/meminfo: memFree=18277228/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=3188 CPUtime=0 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 326 0 0 0 0 0 0 0 24 0 1 0 365480508 3264512 265 33554432000 134512640 134731564 4289345104 18446744073709551615 134531593 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 797 265 225 54 0 107 0

[startup+0.0179111 s]
/proc/loadavg: 3.84 3.97 3.90 4/185 10845
/proc/meminfo: memFree=18277228/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=3576 CPUtime=0.01 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 524 0 0 0 1 0 0 0 24 0 1 0 365480508 3661824 419 33554432000 134512640 134731564 4289345104 18446744073709551615 134578082 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 894 419 238 54 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3576

[startup+0.1009 s]
/proc/loadavg: 3.84 3.97 3.90 4/185 10845
/proc/meminfo: memFree=18277228/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=4388 CPUtime=0.09 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 792 0 0 0 9 0 0 0 24 0 1 0 365480508 4493312 635 33554432000 134512640 134731564 4289345104 18446744073709551615 134614655 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 1097 635 268 54 0 407 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4388

[startup+0.300861 s]
/proc/loadavg: 3.84 3.97 3.90 4/185 10845
/proc/meminfo: memFree=18277228/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=4652 CPUtime=0.29 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 861 0 0 0 29 0 0 0 25 0 1 0 365480508 4763648 704 33554432000 134512640 134731564 4289345104 18446744073709551615 134721855 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 1163 704 268 54 0 473 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4652

[startup+0.700782 s]
/proc/loadavg: 3.84 3.97 3.90 4/185 10845
/proc/meminfo: memFree=18277228/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=4916 CPUtime=0.69 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 942 0 0 0 69 0 0 0 25 0 1 0 365480508 5033984 785 33554432000 134512640 134731564 4289345104 18446744073709551615 134718770 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 1229 785 268 54 0 539 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4916

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

[startup+1.10671 s]
/proc/loadavg: 3.84 3.97 3.90 5/190 10851
/proc/meminfo: memFree=18271524/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=5324 CPUtime=1.1 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 1023 0 0 0 110 0 0 0 25 0 1 0 365480508 5451776 866 33554432000 134512640 134731564 4289345104 18446744073709551615 134605885 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 1331 866 271 54 0 641 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 5324

[startup+1.30067 s]
/proc/loadavg: 3.84 3.97 3.90 5/190 10851
/proc/meminfo: memFree=18271524/32950928 swapFree=67111528/67111528
[pid=10845] ppid=10842 vsize=5324 CPUtime=1.29 cores=5,7
/proc/10845/stat : 10845 (MPhaseSAT) R 10842 10845 10339 0 -1 4202496 1023 0 0 0 129 0 0 0 25 0 1 0 365480508 5451776 866 33554432000 134512640 134731564 4289345104 18446744073709551615 134606116 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/10845/statm: 1331 866 271 54 0 641 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 5324

Child status: 10
Real time (s): 1.34385
CPU time (s): 1.3418
CPU user time (s): 1.3408
CPU system time (s): 0.000999
CPU usage (%): 99.8473
Max. virtual memory (cumulated for all children) (KiB): 5324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3408
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1033
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= 13
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node115 at 2011-04-02 15:54:58
IDJOB=3094224
IDBENCH=82706
IDSOLVER=1520
FILE ID=node115/3094224-1301752498
RUNJOBID= node115-1301748570-10360
PBS_JOBID= 12841022
Free space on /tmp= 71368 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k7-r89-v70-c6230-S944754256-018.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094224-1301752498/watcher-3094224-1301752498 -o /tmp/evaluation-result-3094224-1301752498/solver-3094224-1301752498 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094224-1301752498.cnf

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

MD5SUM BENCH= db18d6e256ea6948d91cc6cd8858dc3d
RANDOM SEED=145886518

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:      18276772 kB
Buffers:        395804 kB
Cached:       13697812 kB
SwapCached:          0 kB
Active:        9452320 kB
Inactive:      4916616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18276772 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             404 kB
Writeback:           0 kB
AnonPages:      275672 kB
Mapped:          16536 kB
Slab:           240748 kB
PageTables:       5628 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   445776 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= 71364 MiB
End job on node115 at 2011-04-02 15:55:00