Trace number 3094555

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 0.806876 0.808057

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S196779284-038.SATISFIABLE.cnf
MD5SUMd6fc0fc1938fb2a6255c0a87d93d5767
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses2130
Sum of the clauses size10650
Maximum clause length5
Minimum clause length5
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 52130
Number of clauses of size over 50

Solver Data 

0.79/0.80	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.80	c input CNF file=HOME/instance-3094555-1301759399.cnf 
0.79/0.80	c Clause#=2130  var#=100  ratio=21 
0.79/0.80	c Simplified clause#=2130 
0.79/0.80	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=100  
0.79/0.80	c local search on 
0.79/0.80	c A solution found by local search 
0.79/0.80	c unfixed var#=0 var#=100 
0.79/0.80	c verified 
0.79/0.80	c 
0.79/0.80	s SATISFIABLE
0.79/0.80	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 -91 92 93 -94 -95 -96 97 98 99 -100 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.805877

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-3094555-1301759399/watcher-3094555-1301759399 -o /tmp/evaluation-result-3094555-1301759399/solver-3094555-1301759399 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094555-1301759399.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: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=3136 CPUtime=0 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 382 0 0 0 0 0 0 0 25 0 1 0 268355401 3211264 320 33554432000 134512640 134731564 4288758416 18446744073709551615 134559035 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 784 320 237 54 0 94 0

[startup+0.0535911 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=3292 CPUtime=0.05 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 385 0 0 0 5 0 0 0 25 0 1 0 268355401 3371008 323 33554432000 134512640 134731564 4288758416 18446744073709551615 134580500 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 823 323 238 54 0 133 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3292

[startup+0.100582 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=3424 CPUtime=0.09 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 484 0 0 0 9 0 0 0 25 0 1 0 268355401 3506176 422 33554432000 134512640 134731564 4288758416 18446744073709551615 134720304 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 856 422 268 54 0 166 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3424

[startup+0.300545 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=3820 CPUtime=0.29 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 559 0 0 0 29 0 0 0 25 0 1 0 268355401 3911680 497 33554432000 134512640 134731564 4288758416 18446744073709551615 134720304 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 955 497 268 54 0 265 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3820

[startup+0.700472 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=4088 CPUtime=0.69 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 648 0 0 0 69 0 0 0 25 0 1 0 268355401 4186112 586 33554432000 134512640 134731564 4288758416 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 1022 586 268 54 0 332 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4088

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

[startup+0.800456 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 12061
/proc/meminfo: memFree=20439948/32951124 swapFree=67111528/67111528
[pid=12061] ppid=12059 vsize=4220 CPUtime=0.79 cores=0,2
/proc/12061/stat : 12061 (MPhaseSAT) R 12059 12061 11133 0 -1 4202496 679 0 0 0 79 0 0 0 25 0 1 0 268355401 4321280 617 33554432000 134512640 134731564 4288758416 18446744073709551615 134603349 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/12061/statm: 1055 617 271 54 0 365 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4220

Child status: 10
Real time (s): 0.808057
CPU time (s): 0.806876
CPU user time (s): 0.805877
CPU system time (s): 0.000999
CPU usage (%): 99.8538
Max. virtual memory (cumulated for all children) (KiB): 4220

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.805877
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= 692
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= 9

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node142 at 2011-04-02 17:49:59
IDJOB=3094555
IDBENCH=83037
IDSOLVER=1520
FILE ID=node142/3094555-1301759399
RUNJOBID= node142-1301756633-11151
PBS_JOBID= 12841054
Free space on /tmp= 71032 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S196779284-038.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094555-1301759399/watcher-3094555-1301759399 -o /tmp/evaluation-result-3094555-1301759399/solver-3094555-1301759399 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094555-1301759399.cnf

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

MD5SUM BENCH= d6fc0fc1938fb2a6255c0a87d93d5767
RANDOM SEED=1189437242

node142.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		: 2666.846
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		: 2666.846
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	: 5131.95
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		: 2666.846
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		: 2666.846
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	: 5332.67
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		: 2666.846
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	: 5332.81
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		: 2666.846
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		: 2666.846
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		: 2666.846
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:      20440228 kB
Buffers:        365880 kB
Cached:       11773212 kB
SwapCached:          0 kB
Active:        7522204 kB
Inactive:      4695620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20440228 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             468 kB
Writeback:           0 kB
AnonPages:       78620 kB
Mapped:          16896 kB
Slab:           229288 kB
PageTables:       5276 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   261012 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= 71028 MiB
End job on node142 at 2011-04-02 17:50:00