Trace number 3094246

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 1.01684 1.01747

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v60-c5340-S1141565617-016.SATISFIABLE.cnf
MD5SUM0d2557a5d8edb4c9702dcfea1e1cd4c5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.030994
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
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 55340

Solver Data 

1.00/1.01	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.00/1.01	c input CNF file=HOME/instance-3094246-1301752573.cnf 
1.00/1.01	c Clause#=5340  var#=60  ratio=89 
1.00/1.01	c Simplified clause#=5340 
1.00/1.01	c XOR_varElimination deleted var#=0 clauses#=5340 
1.00/1.01	c inative var#=0 
1.00/1.01	c free var#=60  
1.00/1.01	c local search on 
1.00/1.01	c A solution found by local search 
1.00/1.01	c unfixed var#=0 var#=60 
1.00/1.01	c verified 
1.00/1.01	c 
1.00/1.01	s SATISFIABLE
1.00/1.01	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 
1.00/1.01	v 0
1.00/1.01	c 
1.00/1.01	c  Running time=1.014846

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-3094246-1301752573/watcher-3094246-1301752573 -o /tmp/evaluation-result-3094246-1301752573/solver-3094246-1301752573 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094246-1301752573.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: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=3184 CPUtime=0 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 335 0 0 0 0 0 0 0 25 0 1 0 286856090 3260416 274 33554432000 134512640 134731564 4292878928 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 796 274 225 54 0 106 0

[startup+0.013583 s]
/proc/loadavg: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=3520 CPUtime=0.01 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 502 0 0 0 1 0 0 0 25 0 1 0 286856090 3604480 403 33554432000 134512640 134731564 4292878928 18446744073709551615 134559147 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 880 403 237 54 0 190 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3520

[startup+0.100569 s]
/proc/loadavg: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=4204 CPUtime=0.09 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 753 0 0 0 9 0 0 0 25 0 1 0 286856090 4304896 592 33554432000 134512640 134731564 4292878928 18446744073709551615 134720309 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 1051 592 268 54 0 361 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4204

[startup+0.300535 s]
/proc/loadavg: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=4468 CPUtime=0.29 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 833 0 0 0 29 0 0 0 25 0 1 0 286856090 4575232 672 33554432000 134512640 134731564 4292878928 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 1117 672 268 54 0 427 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4468

[startup+0.700463 s]
/proc/loadavg: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=5000 CPUtime=0.69 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 943 0 0 0 69 0 0 0 25 0 1 0 286856090 5120000 782 33554432000 134512640 134731564 4292878928 18446744073709551615 134603339 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 1250 782 271 54 0 560 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5000

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

[startup+0.900489 s]
/proc/loadavg: 3.93 3.97 3.91 5/189 12711
/proc/meminfo: memFree=22278448/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=5000 CPUtime=0.89 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 960 0 0 0 89 0 0 0 25 0 1 0 286856090 5120000 799 33554432000 134512640 134731564 4292878928 18446744073709551615 134605860 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 1250 799 271 54 0 560 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 5000

[startup+1.00047 s]
/proc/loadavg: 3.93 3.97 3.91 5/190 12712
/proc/meminfo: memFree=22275736/32950928 swapFree=67111528/67111528
[pid=12711] ppid=12709 vsize=5000 CPUtime=1 cores=1,3
/proc/12711/stat : 12711 (MPhaseSAT) R 12709 12711 11954 0 -1 4202496 960 0 0 0 100 0 0 0 25 0 1 0 286856090 5120000 799 33554432000 134512640 134731564 4292878928 18446744073709551615 134607728 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12711/statm: 1250 799 271 54 0 560 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 5000

Child status: 10
Real time (s): 1.01747
CPU time (s): 1.01684
CPU user time (s): 1.01584
CPU system time (s): 0.000999
CPU usage (%): 99.9381
Max. virtual memory (cumulated for all children) (KiB): 5000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01585
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= 970
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= 2

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-02 15:56:13
IDJOB=3094246
IDBENCH=82728
IDSOLVER=1520
FILE ID=node120/3094246-1301752573
RUNJOBID= node120-1301748570-11974
PBS_JOBID= 12841017
Free space on /tmp= 71756 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k7-r89-v60-c5340-S1141565617-016.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094246-1301752573/watcher-3094246-1301752573 -o /tmp/evaluation-result-3094246-1301752573/solver-3094246-1301752573 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094246-1301752573.cnf

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

MD5SUM BENCH= 0d2557a5d8edb4c9702dcfea1e1cd4c5
RANDOM SEED=723404334

node120.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		: 2666.809
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	: 5333.61
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		: 2666.809
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	: 5226.07
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:      22278604 kB
Buffers:        351700 kB
Cached:        9914480 kB
SwapCached:          0 kB
Active:        7411784 kB
Inactive:      2990220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22278604 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             304 kB
Writeback:           0 kB
AnonPages:      136112 kB
Mapped:          17136 kB
Slab:           207664 kB
PageTables:       5004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   320660 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= 71756 MiB
End job on node120 at 2011-04-02 15:56:14