Trace number 3094900

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 2011-03-03SAT 0.757883 0.759751

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S25975519-056.SATISFIABLE.cnf
MD5SUMe97f6275ab407a8de4fd3a3e9a04d03e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004999
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses1597
Sum of the clauses size7985
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 51597
Number of clauses of size over 50

Solver Data 

0.69/0.75	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.69/0.75	c input CNF file=HOME/instance-3094900-1301753735.cnf 
0.69/0.75	c Clause#=1597  var#=75  ratio=21 
0.69/0.75	c Simplified clause#=1597 
0.69/0.75	c XOR_varElimination deleted var#=0 clauses#=1597 
0.69/0.75	c inative var#=0 
0.69/0.75	c free var#=75  
0.69/0.75	c local search on 
0.69/0.75	c A solution found by local search 
0.69/0.75	c unfixed var#=0 var#=75 
0.69/0.75	c verified 
0.69/0.75	c 
0.69/0.75	s SATISFIABLE
0.69/0.75	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 
0.69/0.75	v 0
0.69/0.75	c 
0.69/0.75	c  Running time=0.756884

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-3094900-1301753735/watcher-3094900-1301753735 -o /tmp/evaluation-result-3094900-1301753735/solver-3094900-1301753735 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094900-1301753735.cnf 

running on 2 cores: 4,6

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 1421
/proc/meminfo: memFree=27208584/32950928 swapFree=67102716/67111528
[pid=1421] ppid=1419 vsize=3068 CPUtime=0 cores=4,6
/proc/1421/stat : 1421 (MPhaseSAT64) R 1419 1421 735 0 -1 4202496 322 0 0 0 0 0 0 0 25 0 1 0 286970600 3141632 262 33554432000 134512640 134761588 4294920112 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/1421/statm: 767 262 225 61 0 70 0

[startup+0.084871 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 1421
/proc/meminfo: memFree=27208584/32950928 swapFree=67102716/67111528
[pid=1421] ppid=1419 vsize=3656 CPUtime=0.08 cores=4,6
/proc/1421/stat : 1421 (MPhaseSAT64) R 1419 1421 735 0 -1 4202496 542 0 0 0 8 0 0 0 25 0 1 0 286970600 3743744 480 33554432000 134512640 134761588 4294920112 18446744073709551615 134747168 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/1421/statm: 914 480 273 61 0 217 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3656

[startup+0.10087 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 1421
/proc/meminfo: memFree=27208584/32950928 swapFree=67102716/67111528
[pid=1421] ppid=1419 vsize=3840 CPUtime=0.09 cores=4,6
/proc/1421/stat : 1421 (MPhaseSAT64) R 1419 1421 735 0 -1 4202496 556 0 0 0 9 0 0 0 25 0 1 0 286970600 3932160 494 33554432000 134512640 134761588 4294920112 18446744073709551615 134747556 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/1421/statm: 960 494 273 61 0 263 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3840

[startup+0.30084 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 1421
/proc/meminfo: memFree=27208584/32950928 swapFree=67102716/67111528
[pid=1421] ppid=1419 vsize=5260 CPUtime=0.29 cores=4,6
/proc/1421/stat : 1421 (MPhaseSAT64) R 1419 1421 735 0 -1 4202496 944 0 0 0 29 0 0 0 25 0 1 0 286970600 5386240 882 33554432000 134512640 134761588 4294920112 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/1421/statm: 1315 882 274 61 0 618 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5260

[startup+0.700755 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 1421
/proc/meminfo: memFree=27208584/32950928 swapFree=67102716/67111528
[pid=1421] ppid=1419 vsize=5264 CPUtime=0.69 cores=4,6
/proc/1421/stat : 1421 (MPhaseSAT64) R 1419 1421 735 0 -1 4202496 1009 0 0 0 69 0 0 0 25 0 1 0 286970600 5390336 883 33554432000 134512640 134761588 4294920112 18446744073709551615 134747171 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/1421/statm: 1316 883 274 61 0 619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5264

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

Child status: 10
Real time (s): 0.759751
CPU time (s): 0.757883
CPU user time (s): 0.756884
CPU system time (s): 0.000999
CPU usage (%): 99.7541
Max. virtual memory (cumulated for all children) (KiB): 5392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.756884
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= 1021
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= 12
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-02 16:15:35
IDJOB=3094900
IDBENCH=82782
IDSOLVER=1521
FILE ID=node148/3094900-1301753735
RUNJOBID= node148-1301748567-755
PBS_JOBID= 12840992
Free space on /tmp= 71696 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S25975519-056.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094900-1301753735/watcher-3094900-1301753735 -o /tmp/evaluation-result-3094900-1301753735/solver-3094900-1301753735 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094900-1301753735.cnf

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

MD5SUM BENCH= e97f6275ab407a8de4fd3a3e9a04d03e
RANDOM SEED=1754356

node148.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		: 2666.854
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	: 5333.70
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		: 2666.854
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	: 5332.75
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		: 2666.854
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	: 5332.83
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      27208600 kB
Buffers:        275352 kB
Cached:        5150892 kB
SwapCached:       4876 kB
Active:        2037200 kB
Inactive:      3480440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      27208600 kB
SwapTotal:    67111528 kB
SwapFree:     67102716 kB
Dirty:             420 kB
Writeback:           0 kB
AnonPages:       88324 kB
Mapped:          16676 kB
Slab:           160820 kB
PageTables:       4956 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   285040 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= 71696 MiB
End job on node148 at 2011-04-02 16:15:36