Trace number 3375046

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 2011-05-14 (fixed)SAT 1.08883 1.09082

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
MD5SUMef1a26ad366fa6cdd721df0a7f8f760c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034994
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 

0.99/1.09	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.99/1.09	c input CNF file=HOME/instance-3375046-1305449213.cnf 
0.99/1.09	c Clause#=4450  var#=50  ratio=89 
0.99/1.09	c Simplified clause#=4450 
0.99/1.09	c XOR_varElimination deleted var#=0 clauses#=4450 
0.99/1.09	c inative var#=0 
0.99/1.09	c free var#=50  
0.99/1.09	c local search on 
0.99/1.09	c A solution found by local search 
0.99/1.09	c unfixed var#=0 var#=50 
0.99/1.09	c verified 
0.99/1.09	c 
0.99/1.09	s SATISFIABLE
0.99/1.09	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 
0.99/1.09	v 0
0.99/1.09	c 
0.99/1.09	c  Running time=1.087835

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375046-1305449213/watcher-3375046-1305449213 -o /tmp/evaluation-result-3375046-1305449213/solver-3375046-1305449213 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375046-1305449213.cnf 

running on 2 cores: 1,3

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: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=12008 CPUtime=0 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 392 0 0 0 0 0 0 0 25 0 1 0 656521781 12296192 334 33554432000 4194304 4479436 140735793121728 18446744073709551615 244446945024 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 3002 334 267 70 0 122 0

[startup+0.0418181 s]
/proc/loadavg: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=13364 CPUtime=0.03 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 944 0 0 0 3 0 0 0 25 0 1 0 656521781 13684736 713 33554432000 4194304 4479436 140735793121728 18446744073709551615 4340856 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 3341 713 304 70 0 461 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13364

[startup+0.100796 s]
/proc/loadavg: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=13364 CPUtime=0.09 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 944 0 0 0 9 0 0 0 25 0 1 0 656521781 13684736 713 33554432000 4194304 4479436 140735793121728 18446744073709551615 4340755 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 3341 713 304 70 0 461 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13364

[startup+0.30077 s]
/proc/loadavg: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=14016 CPUtime=0.29 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 1123 0 0 0 29 0 0 0 25 0 1 0 656521781 14352384 892 33554432000 4194304 4479436 140735793121728 18446744073709551615 4457414 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 3504 892 325 70 0 624 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14016

[startup+0.700695 s]
/proc/loadavg: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=16052 CPUtime=0.69 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 1669 0 0 0 69 0 0 0 25 0 1 0 656521781 16437248 1406 33554432000 4194304 4479436 140735793121728 18446744073709551615 4450969 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 4013 1406 325 70 0 1133 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16052

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

[startup+0.900645 s]
/proc/loadavg: 4.07 4.00 3.63 4/336 2539
/proc/meminfo: memFree=25018944/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=16052 CPUtime=0.89 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 1736 0 0 0 89 0 0 0 25 0 1 0 656521781 16437248 1409 33554432000 4194304 4479436 140735793121728 18446744073709551615 4292880 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 4013 1409 328 70 0 1133 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 16052

[startup+1.00063 s]
/proc/loadavg: 4.06 4.00 3.63 5/337 2540
/proc/meminfo: memFree=25013740/32951124 swapFree=44485764/67111528
[pid=2539] ppid=2537 vsize=16052 CPUtime=0.99 cores=1,3
/proc/2539/stat : 2539 (MPhaseSAT64) R 2537 2539 1741 0 -1 4202496 1736 0 0 0 99 0 0 0 25 0 1 0 656521781 16437248 1409 33554432000 4194304 4479436 140735793121728 18446744073709551615 4295695 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2539/statm: 4013 1409 328 70 0 1133 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 16052

Child status: 10
Real time (s): 1.09082
CPU time (s): 1.08883
CPU user time (s): 1.08483
CPU system time (s): 0.003999
CPU usage (%): 99.8177
Max. virtual memory (cumulated for all children) (KiB): 16180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.08483
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1747
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= 4
involuntary context switches= 4

runsolver used 0.011998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node105 at 2011-05-15 10:46:53
IDJOB=3375046
IDBENCH=82755
IDSOLVER=1855
FILE ID=node105/3375046-1305449213
RUNJOBID= node105-1305447769-2203
PBS_JOBID= 13324851
Free space on /tmp= 73616 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375046-1305449213/watcher-3375046-1305449213 -o /tmp/evaluation-result-3375046-1305449213/solver-3375046-1305449213 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375046-1305449213.cnf

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

MD5SUM BENCH= ef1a26ad366fa6cdd721df0a7f8f760c
RANDOM SEED=152716618

node105.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		: 2666.825
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		: 2666.825
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		: 2666.825
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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		: 2666.825
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		: 2666.825
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:      25019216 kB
Buffers:        292520 kB
Cached:        6093928 kB
SwapCached:      39656 kB
Active:         889260 kB
Inactive:      6780672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25019216 kB
SwapTotal:    67111528 kB
SwapFree:     44485764 kB
Dirty:            1076 kB
Writeback:           0 kB
AnonPages:     1251604 kB
Mapped:          11352 kB
Slab:           130104 kB
PageTables:      66592 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 65464688 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= 73616 MiB
End job on node105 at 2011-05-15 10:46:55