Trace number 3375110

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 2.01169 2.01304

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v90-c8010-S2014736708-037.SATISFIABLE.cnf
MD5SUM8dc696d26aef2000e5a242477bc06639
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.107982
Satisfiable
(Un)Satisfiability was proved
Number of variables90
Number of clauses8010
Sum of the clauses size56070
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 58010

Solver Data 

1.99/2.01	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.99/2.01	c input CNF file=HOME/instance-3375110-1305449610.cnf 
1.99/2.01	c Clause#=8010  var#=90  ratio=89 
1.99/2.01	c Simplified clause#=8010 
1.99/2.01	c XOR_varElimination deleted var#=0 clauses#=8010 
1.99/2.01	c inative var#=0 
1.99/2.01	c free var#=90  
1.99/2.01	c local search on 
1.99/2.01	c A solution found by local search 
1.99/2.01	c unfixed var#=0 var#=90 
1.99/2.01	c verified 
1.99/2.01	c 
1.99/2.01	s SATISFIABLE
1.99/2.01	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 
1.99/2.01	v 0
1.99/2.01	c 
1.99/2.01	c  Running time=2.010694

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-3375110-1305449610/watcher-3375110-1305449610 -o /tmp/evaluation-result-3375110-1305449610/solver-3375110-1305449610 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375110-1305449610.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: 0.42 1.61 2.83 4/319 4257
/proc/meminfo: memFree=17683596/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=12056 CPUtime=0 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 410 0 0 0 0 0 0 0 25 0 1 0 656560659 12345344 351 33554432000 4194304 4479436 140737240105344 18446744073709551615 274473967360 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3014 352 267 70 0 134 0

[startup+0.01914 s]
/proc/loadavg: 0.42 1.61 2.83 4/319 4257
/proc/meminfo: memFree=17683596/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=13052 CPUtime=0.01 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 702 0 0 0 1 0 0 0 25 0 1 0 656560659 13365248 532 33554432000 4194304 4479436 140737240105344 18446744073709551615 4236556 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3263 532 281 70 0 383 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 13052

[startup+0.100183 s]
/proc/loadavg: 0.42 1.61 2.83 4/319 4257
/proc/meminfo: memFree=17683596/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=15068 CPUtime=0.09 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1214 0 0 0 9 0 0 0 25 0 1 0 656560659 15429632 1044 33554432000 4194304 4479436 140737240105344 18446744073709551615 4340677 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3767 1044 303 70 0 887 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15068

[startup+0.30009 s]
/proc/loadavg: 0.42 1.61 2.83 4/319 4257
/proc/meminfo: memFree=17683596/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=15068 CPUtime=0.29 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1228 0 0 0 29 0 0 0 25 0 1 0 656560659 15429632 1058 33554432000 4194304 4479436 140737240105344 18446744073709551615 4304664 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3767 1058 317 70 0 887 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15068

[startup+0.70102 s]
/proc/loadavg: 0.42 1.61 2.83 4/319 4257
/proc/meminfo: memFree=17683596/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=14556 CPUtime=0.7 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1266 0 0 0 70 0 0 0 25 0 1 0 656560659 14905344 968 33554432000 4194304 4479436 140737240105344 18446744073709551615 4330256 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3639 968 324 70 0 759 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 14556

[startup+1.50088 s]
/proc/loadavg: 0.42 1.61 2.83 7/320 4286
/proc/meminfo: memFree=17677960/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=15576 CPUtime=1.49 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1520 0 0 0 149 0 0 0 25 0 1 0 656560659 15949824 1222 33554432000 4194304 4479436 140737240105344 18446744073709551615 4295250 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3894 1222 327 70 0 1014 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15576

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

[startup+1.90081 s]
/proc/loadavg: 0.42 1.61 2.83 7/320 4286
/proc/meminfo: memFree=17677960/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=15576 CPUtime=1.89 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1520 0 0 0 189 0 0 0 25 0 1 0 656560659 15949824 1222 33554432000 4194304 4479436 140737240105344 18446744073709551615 4295713 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3894 1222 327 70 0 1014 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15576

[startup+2.00079 s]
/proc/loadavg: 0.42 1.61 2.83 7/320 4286
/proc/meminfo: memFree=17677960/32950928 swapFree=67111348/67111528
[pid=4257] ppid=4255 vsize=15576 CPUtime=1.99 cores=1,3
/proc/4257/stat : 4257 (MPhaseSAT64) R 4255 4257 30479 0 -1 4202496 1520 0 0 0 199 0 0 0 25 0 1 0 656560659 15949824 1222 33554432000 4194304 4479436 140737240105344 18446744073709551615 4294852 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4257/statm: 3894 1222 327 70 0 1014 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 15576

Child status: 10
Real time (s): 2.01304
CPU time (s): 2.01169
CPU user time (s): 2.01069
CPU system time (s): 0.000999
CPU usage (%): 99.9332
Max. virtual memory (cumulated for all children) (KiB): 15576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.01069
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= 1536
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= 5
involuntary context switches= 5

runsolver used 0.007998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node125 at 2011-05-15 10:53:30
IDJOB=3375110
IDBENCH=82819
IDSOLVER=1855
FILE ID=node125/3375110-1305449610
RUNJOBID= node125-1305449607-4082
PBS_JOBID= 13324855
Free space on /tmp= 73228 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v90-c8010-S2014736708-037.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375110-1305449610/watcher-3375110-1305449610 -o /tmp/evaluation-result-3375110-1305449610/solver-3375110-1305449610 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375110-1305449610.cnf

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

MD5SUM BENCH= 8dc696d26aef2000e5a242477bc06639
RANDOM SEED=516515540

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:      17683884 kB
Buffers:        276704 kB
Cached:        4542764 kB
SwapCached:          0 kB
Active:       11206376 kB
Inactive:      3681740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17683884 kB
SwapTotal:    67111528 kB
SwapFree:     67111348 kB
Dirty:            2472 kB
Writeback:           0 kB
AnonPages:    10068244 kB
Mapped:          30596 kB
Slab:           279736 kB
PageTables:      36016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 51063132 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= 73228 MiB
End job on node125 at 2011-05-15 10:53:32