Trace number 3094999

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 1.41278 1.41564

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S1786071619-083.SATISFIABLE.cnf
MD5SUM4c9b0d97324ee5d84961ef01705e1399
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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 

1.39/1.41	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
1.39/1.41	c input CNF file=HOME/instance-3094999-1301754296.cnf 
1.39/1.41	c Clause#=4450  var#=50  ratio=89 
1.39/1.41	c Simplified clause#=4450 
1.39/1.41	c XOR_varElimination deleted var#=0 clauses#=4450 
1.39/1.41	c inative var#=0 
1.39/1.41	c free var#=50  
1.39/1.41	c local search on 
1.39/1.41	c A solution found by local search 
1.39/1.41	c unfixed var#=0 var#=50 
1.39/1.41	c verified 
1.39/1.41	c 
1.39/1.41	s SATISFIABLE
1.39/1.41	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 
1.39/1.41	v 0
1.39/1.41	c 
1.39/1.41	c  Running time=1.411785

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-3094999-1301754296/watcher-3094999-1301754296 -o /tmp/evaluation-result-3094999-1301754296/solver-3094999-1301754296 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094999-1301754296.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: 4.06 4.02 3.95 5/187 19277
/proc/meminfo: memFree=21272048/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=3068 CPUtime=0 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 335 0 0 0 0 0 0 0 24 0 1 0 287028276 3141632 274 33554432000 134512640 134761588 4294191984 18446744073709551615 134531305 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 767 274 225 61 0 70 0

[startup+0.00762096 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19277
/proc/meminfo: memFree=21272048/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=3068 CPUtime=0 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 344 0 0 0 0 0 0 0 24 0 1 0 287028276 3141632 283 33554432000 134512640 134761588 4294191984 18446744073709551615 8846933 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 767 283 225 61 0 70 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3068

[startup+0.100632 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19277
/proc/meminfo: memFree=21272048/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=4376 CPUtime=0.09 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 807 0 0 0 9 0 0 0 24 0 1 0 287028276 4481024 645 33554432000 134512640 134761588 4294191984 18446744073709551615 134644378 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1094 645 259 61 0 397 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4376

[startup+0.313879 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19277
/proc/meminfo: memFree=21272048/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=4528 CPUtime=0.3 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 832 0 0 0 30 0 0 0 25 0 1 0 287028276 4636672 669 33554432000 134512640 134761588 4294191984 18446744073709551615 134614392 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1132 666 274 61 0 435 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 4528

[startup+0.700522 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19277
/proc/meminfo: memFree=21272048/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=7068 CPUtime=0.69 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 1479 0 0 0 69 0 0 0 25 0 1 0 287028276 7237632 1301 33554432000 134512640 134761588 4294191984 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1767 1301 274 61 0 1070 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7068

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

[startup+1.10644 s]
/proc/loadavg: 4.06 4.02 3.95 5/188 19278
/proc/meminfo: memFree=21268700/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=6812 CPUtime=1.1 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 1511 0 0 0 110 0 0 0 25 0 1 0 287028276 6975488 1269 33554432000 134512640 134761588 4294191984 18446744073709551615 134747252 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1703 1269 274 61 0 1006 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 6812

[startup+1.30043 s]
/proc/loadavg: 4.06 4.02 3.95 5/188 19278
/proc/meminfo: memFree=21268700/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=7328 CPUtime=1.29 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 1643 0 0 0 129 0 0 0 25 0 1 0 287028276 7503872 1401 33554432000 134512640 134761588 4294191984 18446744073709551615 134605936 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1832 1401 277 61 0 1135 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 7328

[startup+1.40039 s]
/proc/loadavg: 4.06 4.02 3.95 5/188 19278
/proc/meminfo: memFree=21268700/32951132 swapFree=67111528/67111528
[pid=19277] ppid=19275 vsize=7328 CPUtime=1.39 cores=0,2
/proc/19277/stat : 19277 (MPhaseSAT64) R 19275 19277 18377 0 -1 4202496 1643 0 0 0 139 0 0 0 25 0 1 0 287028276 7503872 1401 33554432000 134512640 134761588 4294191984 18446744073709551615 134605510 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19277/statm: 1832 1401 277 61 0 1135 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 7328

Child status: 10
Real time (s): 1.41564
CPU time (s): 1.41278
CPU user time (s): 1.40979
CPU system time (s): 0.002999
CPU usage (%): 99.7979
Max. virtual memory (cumulated for all children) (KiB): 7328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40978
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= 1653
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= 6
involuntary context switches= 3

runsolver used 0.011998 second user time and 0.038994 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-02 16:24:56
IDJOB=3094999
IDBENCH=82881
IDSOLVER=1521
FILE ID=node128/3094999-1301754296
RUNJOBID= node128-1301748569-18395
PBS_JOBID= 12841009
Free space on /tmp= 71128 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S1786071619-083.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094999-1301754296/watcher-3094999-1301754296 -o /tmp/evaluation-result-3094999-1301754296/solver-3094999-1301754296 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094999-1301754296.cnf

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

MD5SUM BENCH= 4c9b0d97324ee5d84961ef01705e1399
RANDOM SEED=137638629

node128.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		: 2666.852
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	: 5333.70
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		: 2666.852
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	: 5332.75
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21272088 kB
Buffers:        343716 kB
Cached:       10967192 kB
SwapCached:          0 kB
Active:        7906864 kB
Inactive:      3496172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21272088 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             324 kB
Writeback:          20 kB
AnonPages:       91900 kB
Mapped:          17316 kB
Slab:           214040 kB
PageTables:       5236 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   279088 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71128 MiB
End job on node128 at 2011-04-02 16:24:58