Trace number 3375225

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 2.02169 2.02317

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v80-c7120-S153059456-076.SATISFIABLE.cnf
MD5SUMa07a8125427a6bd5de5db67d31fcc46b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05699
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses7120
Sum of the clauses size49840
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 57120

Solver Data 

1.99/2.02	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.99/2.02	c input CNF file=HOME/instance-3375225-1305449885.cnf 
1.99/2.02	c Clause#=7120  var#=80  ratio=89 
1.99/2.02	c Simplified clause#=7120 
1.99/2.02	c XOR_varElimination deleted var#=0 clauses#=7120 
1.99/2.02	c inative var#=0 
1.99/2.02	c free var#=80  
1.99/2.02	c local search on 
1.99/2.02	c A solution found by local search 
1.99/2.02	c unfixed var#=0 var#=80 
1.99/2.02	c verified 
1.99/2.02	c 
1.99/2.02	s SATISFIABLE
1.99/2.02	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 
1.99/2.02	v 0
1.99/2.02	c 
1.99/2.02	c  Running time=2.021692

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-3375225-1305449885/watcher-3375225-1305449885 -o /tmp/evaluation-result-3375225-1305449885/solver-3375225-1305449885 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375225-1305449885.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: 1.19 2.16 3.21 6/325 20610
/proc/meminfo: memFree=22791096/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=12036 CPUtime=0 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 405 0 0 0 0 0 0 0 25 0 1 0 735218992 12324864 347 33554432000 4194304 4479436 140736323278864 18446744073709551615 4213885 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3009 347 267 70 0 129 0

[startup+0.0126961 s]
/proc/loadavg: 1.19 2.16 3.21 6/325 20610
/proc/meminfo: memFree=22791096/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=12588 CPUtime=0.01 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 604 0 0 0 1 0 0 0 25 0 1 0 735218992 12890112 447 33554432000 4194304 4479436 140736323278864 18446744073709551615 4264496 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3147 447 279 70 0 267 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12588

[startup+0.100714 s]
/proc/loadavg: 1.19 2.16 3.21 6/325 20610
/proc/meminfo: memFree=22791096/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=14416 CPUtime=0.09 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1049 0 0 0 9 0 0 0 25 0 1 0 735218992 14761984 892 33554432000 4194304 4479436 140736323278864 18446744073709551615 4341787 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3604 892 303 70 0 724 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14416

[startup+0.300689 s]
/proc/loadavg: 1.19 2.16 3.21 6/325 20610
/proc/meminfo: memFree=22791096/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=14928 CPUtime=0.29 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1191 0 0 0 29 0 0 0 25 0 1 0 735218992 15286272 1034 33554432000 4194304 4479436 140736323278864 18446744073709551615 4304656 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3732 1034 317 70 0 852 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14928

[startup+0.700605 s]
/proc/loadavg: 1.19 2.16 3.21 6/325 20610
/proc/meminfo: memFree=22791096/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=14928 CPUtime=0.69 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1358 0 0 0 69 0 0 0 25 0 1 0 735218992 15286272 1073 33554432000 4194304 4479436 140736323278864 18446744073709551615 4451909 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3732 1073 324 70 0 852 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14928

[startup+1.50046 s]
/proc/loadavg: 1.41 2.19 3.21 5/327 20612
/proc/meminfo: memFree=22782796/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=15696 CPUtime=1.49 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1545 0 0 0 149 0 0 0 25 0 1 0 735218992 16072704 1260 33554432000 4194304 4479436 140736323278864 18446744073709551615 4298753 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3924 1260 327 70 0 1044 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15696

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

[startup+1.90038 s]
/proc/loadavg: 1.41 2.19 3.21 5/327 20612
/proc/meminfo: memFree=22782796/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=15696 CPUtime=1.89 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1545 0 0 0 189 0 0 0 25 0 1 0 735218992 16072704 1260 33554432000 4194304 4479436 140736323278864 18446744073709551615 4294640 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3924 1260 327 70 0 1044 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15696

[startup+2.00036 s]
/proc/loadavg: 1.41 2.19 3.21 5/327 20612
/proc/meminfo: memFree=22782796/32951124 swapFree=59305796/67111528
[pid=20610] ppid=20608 vsize=15696 CPUtime=1.99 cores=1,3
/proc/20610/stat : 20610 (MPhaseSAT64) R 20608 20610 19943 0 -1 4202496 1545 0 0 0 199 0 0 0 25 0 1 0 735218992 16072704 1260 33554432000 4194304 4479436 140736323278864 18446744073709551615 4295216 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20610/statm: 3924 1260 327 70 0 1044 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 15696

Child status: 10
Real time (s): 2.02317
CPU time (s): 2.02169
CPU user time (s): 2.01869
CPU system time (s): 0.002999
CPU usage (%): 99.9269
Max. virtual memory (cumulated for all children) (KiB): 15696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.01869
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= 1565
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= 6

runsolver used 0.009998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node111 at 2011-05-15 10:58:05
IDJOB=3375225
IDBENCH=82934
IDSOLVER=1855
FILE ID=node111/3375225-1305449885
RUNJOBID= node111-1305449883-20436
PBS_JOBID= 13324865
Free space on /tmp= 73732 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v80-c7120-S153059456-076.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375225-1305449885/watcher-3375225-1305449885 -o /tmp/evaluation-result-3375225-1305449885/solver-3375225-1305449885 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375225-1305449885.cnf

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

MD5SUM BENCH= a07a8125427a6bd5de5db67d31fcc46b
RANDOM SEED=1623133257

node111.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		: 2666.849
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		: 2666.849
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	: 5428.12
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		: 2666.849
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		: 2666.849
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	: 5332.86
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		: 2666.849
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	: 5332.75
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		: 2666.849
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	: 5332.83
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		: 2666.849
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	: 5332.67
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		: 2666.849
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22791500 kB
Buffers:        279252 kB
Cached:        6623208 kB
SwapCached:      13720 kB
Active:        1001208 kB
Inactive:      8940560 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22791500 kB
SwapTotal:    67111528 kB
SwapFree:     59305796 kB
Dirty:            1700 kB
Writeback:           0 kB
AnonPages:     3034660 kB
Mapped:          13104 kB
Slab:           118112 kB
PageTables:      37088 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 53376468 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= 73732 MiB
End job on node111 at 2011-05-15 10:58:07