Trace number 3095473

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_M 2011-02-16SAT 0.839871 0.840989

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
MD5SUMef1a26ad366fa6cdd721df0a7f8f760c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
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 54450

Solver Data 

0.79/0.84	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.84	c input CNF file=HOME/instance-3095473-1301753041.cnf 
0.79/0.84	c Clause#=4450  var#=50  ratio=89 
0.79/0.84	c Simplified clause#=4450 
0.79/0.84	c XOR_varElimination deleted var#=0 clauses#=4450 
0.79/0.84	c inative var#=0 
0.79/0.84	c free var#=50  
0.79/0.84	c local search on 
0.79/0.84	c A solution found by local search 
0.79/0.84	c unfixed var#=0 var#=50 
0.79/0.84	c verified 
0.79/0.84	c 
0.79/0.84	s SATISFIABLE
0.79/0.84	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 
0.79/0.84	v 0
0.79/0.84	c 
0.79/0.84	c  Running time=0.837873

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-3095473-1301753041/watcher-3095473-1301753041 -o /tmp/evaluation-result-3095473-1301753041/solver-3095473-1301753041 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095473-1301753041.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: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=3140 CPUtime=0 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 335 0 0 0 0 0 0 0 25 0 1 0 286902270 3215360 274 33554432000 134512640 134829744 4291346944 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 785 274 225 78 0 71 0

[startup+0.0183351 s]
/proc/loadavg: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=3672 CPUtime=0.01 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 513 0 0 0 1 0 0 0 25 0 1 0 286902270 3760128 427 33554432000 134512640 134829744 4291346944 18446744073709551615 2352636 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 918 428 253 78 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3672

[startup+0.100318 s]
/proc/loadavg: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=4072 CPUtime=0.09 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 696 0 0 0 9 0 0 0 25 0 1 0 286902270 4169728 550 33554432000 134512640 134829744 4291346944 18446744073709551615 134661432 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 1018 550 270 78 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4072

[startup+0.300296 s]
/proc/loadavg: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=4468 CPUtime=0.29 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 781 0 0 0 29 0 0 0 25 0 1 0 286902270 4575232 635 33554432000 134512640 134829744 4291346944 18446744073709551615 134657870 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 1117 635 270 78 0 403 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4468

[startup+0.700225 s]
/proc/loadavg: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=4872 CPUtime=0.69 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 885 0 0 0 69 0 0 0 25 0 1 0 286902270 4988928 739 33554432000 134512640 134829744 4291346944 18446744073709551615 134605832 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 1218 739 273 78 0 504 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4872

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

[startup+0.800201 s]
/proc/loadavg: 4.05 4.02 3.94 4/193 20551
/proc/meminfo: memFree=20504128/32951124 swapFree=67111528/67111528
[pid=20551] ppid=20549 vsize=4872 CPUtime=0.79 cores=1,3
/proc/20551/stat : 20551 (MPhaseSAT_M) R 20549 20551 19934 0 -1 4202496 885 0 0 0 79 0 0 0 25 0 1 0 286902270 4988928 739 33554432000 134512640 134829744 4291346944 18446744073709551615 134605801 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20551/statm: 1218 739 273 78 0 504 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4872

Child status: 10
Real time (s): 0.840989
CPU time (s): 0.839871
CPU user time (s): 0.838872
CPU system time (s): 0.000999
CPU usage (%): 99.8671
Max. virtual memory (cumulated for all children) (KiB): 4872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.838872
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= 894
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= 3

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 16:04:01
IDJOB=3095473
IDBENCH=82755
IDSOLVER=1522
FILE ID=node132/3095473-1301753041
RUNJOBID= node132-1301748569-19954
PBS_JOBID= 12841005
Free space on /tmp= 72384 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095473-1301753041/watcher-3095473-1301753041 -o /tmp/evaluation-result-3095473-1301753041/solver-3095473-1301753041 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095473-1301753041.cnf

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

MD5SUM BENCH= ef1a26ad366fa6cdd721df0a7f8f760c
RANDOM SEED=1919040661

node132.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.67
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		: 2666.833
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		: 2666.833
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:      20504268 kB
Buffers:        356904 kB
Cached:       11712312 kB
SwapCached:          0 kB
Active:        7354760 kB
Inactive:      4839748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20504268 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             420 kB
Writeback:           0 kB
AnonPages:      125128 kB
Mapped:          16972 kB
Slab:           190868 kB
PageTables:       5488 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   316540 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72384 MiB
End job on node132 at 2011-04-02 16:04:02