Trace number 3094420

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 0.698892 0.706328

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S864690872-081.SATISFIABLE.cnf
MD5SUM6689be7bde9914194ce4bfa20183e3c5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028994
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
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 54450

Solver Data 

0.69/0.70	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.69/0.70	c input CNF file=HOME/instance-3094420-1301756633.cnf 
0.69/0.70	c Clause#=4450  var#=50  ratio=89 
0.69/0.70	c Simplified clause#=4450 
0.69/0.70	c XOR_varElimination deleted var#=0 clauses#=4450 
0.69/0.70	c inative var#=0 
0.69/0.70	c free var#=50  
0.69/0.70	c local search on 
0.69/0.70	c A solution found by local search 
0.69/0.70	c unfixed var#=0 var#=50 
0.69/0.70	c verified 
0.69/0.70	c 
0.69/0.70	s SATISFIABLE
0.69/0.70	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 
0.69/0.70	v 0
0.69/0.70	c 
0.69/0.70	c  Running time=0.697893

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-3094420-1301756633/watcher-3094420-1301756633 -o /tmp/evaluation-result-3094420-1301756633/solver-3094420-1301756633 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094420-1301756633.cnf 

running on 2 cores: 4,6

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: 3.52 3.89 3.80 2/176 11167
/proc/meminfo: memFree=20455932/32951124 swapFree=67111528/67111528
[pid=11167] ppid=11165 vsize=11760 CPUtime=0 cores=4,6
/proc/11167/stat : 11167 (runsolver) R 11165 11167 11133 0 -1 4202560 47 0 0 0 0 0 0 0 25 0 1 0 268078760 12042240 56 33554432000 4194304 5392636 140733207161536 18446744073709551615 5012135 0 2147483391 4096 24578 0 0 0 17 6 0 0 0
/proc/11167/statm: 2940 56 36 293 0 2644 0

[startup+0.0362811 s]
/proc/loadavg: 3.52 3.89 3.80 2/176 11167
/proc/meminfo: memFree=20455932/32951124 swapFree=67111528/67111528
[pid=11167] ppid=11165 vsize=3712 CPUtime=0.02 cores=4,6
/proc/11167/stat : 11167 (MPhaseSAT) R 11165 11167 11133 0 -1 4202496 602 0 0 0 2 0 0 0 18 0 1 0 268078760 3801088 489 33554432000 134512640 134731564 4289102640 18446744073709551615 134721800 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11167/statm: 928 489 262 54 0 238 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3712

[startup+0.100268 s]
/proc/loadavg: 3.52 3.89 3.80 2/176 11167
/proc/meminfo: memFree=20455932/32951124 swapFree=67111528/67111528
[pid=11167] ppid=11165 vsize=3976 CPUtime=0.09 cores=4,6
/proc/11167/stat : 11167 (MPhaseSAT) R 11165 11167 11133 0 -1 4202496 695 0 0 0 9 0 0 0 18 0 1 0 268078760 4071424 549 33554432000 134512640 134731564 4289102640 18446744073709551615 134667296 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11167/statm: 994 549 268 54 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3976

[startup+0.300265 s]
/proc/loadavg: 3.52 3.89 3.80 2/176 11167
/proc/meminfo: memFree=20455932/32951124 swapFree=67111528/67111528
[pid=11167] ppid=11165 vsize=4376 CPUtime=0.29 cores=4,6
/proc/11167/stat : 11167 (MPhaseSAT) R 11165 11167 11133 0 -1 4202496 781 0 0 0 29 0 0 0 18 0 1 0 268078760 4481024 635 33554432000 134512640 134731564 4289102640 18446744073709551615 134659337 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11167/statm: 1094 635 268 54 0 404 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4376

[startup+0.700183 s]
/proc/loadavg: 3.52 3.89 3.80 2/176 11167
/proc/meminfo: memFree=20455932/32951124 swapFree=67111528/67111528
[pid=11167] ppid=11165 vsize=4772 CPUtime=0.69 cores=4,6
/proc/11167/stat : 11167 (MPhaseSAT) R 11165 11167 11133 0 -1 4202496 885 0 0 0 69 0 0 0 18 0 1 0 268078760 4886528 739 33554432000 134512640 134731564 4289102640 18446744073709551615 10838800 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/11167/statm: 1162 708 272 54 0 472 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4772

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

Child status: 10
Real time (s): 0.706328
CPU time (s): 0.698892
CPU user time (s): 0.697893
CPU system time (s): 0.000999
CPU usage (%): 98.9472
Max. virtual memory (cumulated for all children) (KiB): 4772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.697893
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= 894
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= 10
involuntary context switches= 2

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node142 at 2011-04-02 17:03:53
IDJOB=3094420
IDBENCH=82902
IDSOLVER=1520
FILE ID=node142/3094420-1301756633
RUNJOBID= node142-1301756633-11152
PBS_JOBID= 12841054
Free space on /tmp= 71032 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S864690872-081.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094420-1301756633/watcher-3094420-1301756633 -o /tmp/evaluation-result-3094420-1301756633/solver-3094420-1301756633 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094420-1301756633.cnf

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

MD5SUM BENCH= 6689be7bde9914194ce4bfa20183e3c5
RANDOM SEED=1391106969

node142.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5131.95
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		: 2666.846
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	: 5332.82
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		: 2666.846
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	: 5332.67
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		: 2666.846
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	: 5332.81
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.82
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		: 2666.846
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:     32951124 kB
MemFree:      20456148 kB
Buffers:        365216 kB
Cached:       11771008 kB
SwapCached:          0 kB
Active:        7503572 kB
Inactive:      4695592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20456148 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             168 kB
Writeback:           0 kB
AnonPages:       63516 kB
Mapped:          14604 kB
Slab:           229164 kB
PageTables:       5604 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   186088 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= 71028 MiB
End job on node142 at 2011-04-02 17:03:54