Trace number 3094576

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 1.77273 1.7733

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S218235649-089.SATISFIABLE.cnf
MD5SUM010b9faa30750ce3440cb9a8110ebefe
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.095984
Satisfiable
(Un)Satisfiability was proved
Number of variables125
Number of clauses2662
Sum of the clauses size13310
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 52662
Number of clauses of size over 50

Solver Data 

1.69/1.77	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.69/1.77	c input CNF file=HOME/instance-3094576-1301759711.cnf 
1.69/1.77	c Clause#=2662  var#=125  ratio=21 
1.69/1.77	c Simplified clause#=2662 
1.69/1.77	c XOR_varElimination deleted var#=0 clauses#=2662 
1.69/1.77	c inative var#=0 
1.69/1.77	c free var#=125  
1.69/1.77	c local search on 
1.69/1.77	c A solution found by local search 
1.69/1.77	c unfixed var#=0 var#=125 
1.69/1.77	c verified 
1.69/1.77	c 
1.69/1.77	s SATISFIABLE
1.69/1.77	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 -101 -102 -103 104 -105 -106 107 -108 109 110 -111 -112 -113 114 -115 -116 117 -118 -119 -120 -121 -122 -123 124 125 
1.69/1.77	v 0
1.69/1.77	c 
1.69/1.77	c  Running time=1.770730

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-3094576-1301759711/watcher-3094576-1301759711 -o /tmp/evaluation-result-3094576-1301759711/solver-3094576-1301759711 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094576-1301759711.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 4.02 3.96 4/193 21979
/proc/meminfo: memFree=20529180/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=3164 CPUtime=0 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 287569310 3239936 307 33554432000 134512640 134731564 4293549952 18446744073709551615 134566272 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 791 308 235 54 0 101 0

[startup+0.014236 s]
/proc/loadavg: 4.00 4.02 3.96 4/193 21979
/proc/meminfo: memFree=20529180/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=3376 CPUtime=0.01 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 395 0 0 0 1 0 0 0 25 0 1 0 287569310 3457024 332 33554432000 134512640 134731564 4293549952 18446744073709551615 134579821 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 844 332 238 54 0 154 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3376

[startup+0.100278 s]
/proc/loadavg: 4.00 4.02 3.96 4/193 21979
/proc/meminfo: memFree=20529180/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=3508 CPUtime=0.09 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 497 0 0 0 9 0 0 0 25 0 1 0 287569310 3592192 434 33554432000 134512640 134731564 4293549952 18446744073709551615 2092839 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 877 434 268 54 0 187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3508

[startup+0.300247 s]
/proc/loadavg: 4.00 4.02 3.96 4/193 21979
/proc/meminfo: memFree=20529180/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=3904 CPUtime=0.29 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 587 0 0 0 29 0 0 0 25 0 1 0 287569310 3997696 524 33554432000 134512640 134731564 4293549952 18446744073709551615 2352636 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 976 524 268 54 0 286 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3904

[startup+0.70017 s]
/proc/loadavg: 4.00 4.02 3.96 4/193 21979
/proc/meminfo: memFree=20529180/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=4168 CPUtime=0.69 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 670 0 0 0 69 0 0 0 25 0 1 0 287569310 4268032 607 33554432000 134512640 134731564 4293549952 18446744073709551615 134614650 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 1042 607 268 54 0 352 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4168

[startup+1.50101 s]
/proc/loadavg: 4.00 4.02 3.96 5/194 21980
/proc/meminfo: memFree=20527444/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=4432 CPUtime=1.49 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 718 0 0 0 149 0 0 0 25 0 1 0 287569310 4538368 655 33554432000 134512640 134731564 4293549952 18446744073709551615 134605854 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 1108 655 271 54 0 418 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4432

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

[startup+1.70098 s]
/proc/loadavg: 4.00 4.02 3.96 5/194 21980
/proc/meminfo: memFree=20527444/32951124 swapFree=67111528/67111528
[pid=21979] ppid=21977 vsize=4432 CPUtime=1.69 cores=4,6
/proc/21979/stat : 21979 (MPhaseSAT) R 21977 21979 21142 0 -1 4202496 718 0 0 0 169 0 0 0 25 0 1 0 287569310 4538368 655 33554432000 134512640 134731564 4293549952 18446744073709551615 134606378 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/21979/statm: 1108 655 271 54 0 418 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 4432

Child status: 10
Real time (s): 1.7733
CPU time (s): 1.77273
CPU user time (s): 1.76973
CPU system time (s): 0.002999
CPU usage (%): 99.9677
Max. virtual memory (cumulated for all children) (KiB): 4432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.76973
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= 727
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= 2

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 17:55:12
IDJOB=3094576
IDBENCH=83058
IDSOLVER=1520
FILE ID=node132/3094576-1301759711
RUNJOBID= node132-1301757100-21161
PBS_JOBID= 12841076
Free space on /tmp= 72388 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S218235649-089.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094576-1301759711/watcher-3094576-1301759711 -o /tmp/evaluation-result-3094576-1301759711/solver-3094576-1301759711 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094576-1301759711.cnf

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

MD5SUM BENCH= 010b9faa30750ce3440cb9a8110ebefe
RANDOM SEED=1686433477

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:      20529212 kB
Buffers:        358156 kB
Cached:       11714952 kB
SwapCached:          0 kB
Active:        7328356 kB
Inactive:      4839996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20529212 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:              16 kB
Writeback:           0 kB
AnonPages:       95384 kB
Mapped:          16728 kB
Slab:           191296 kB
PageTables:       5432 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   279816 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= 72388 MiB
End job on node132 at 2011-04-02 17:55:13