Trace number 3094403

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 2.70959 2.71111

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S446351158-079.SATISFIABLE.cnf
MD5SUM871f75d4bb41b463ca12a7a8837d201b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.057991
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 

2.69/2.71	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
2.69/2.71	c input CNF file=HOME/instance-3094403-1301754478.cnf 
2.69/2.71	c Clause#=2662  var#=125  ratio=21 
2.69/2.71	c Simplified clause#=2662 
2.69/2.71	c XOR_varElimination deleted var#=0 clauses#=2662 
2.69/2.71	c inative var#=0 
2.69/2.71	c free var#=125  
2.69/2.71	c local search on 
2.69/2.71	c A solution found by local search 
2.69/2.71	c unfixed var#=0 var#=125 
2.69/2.71	c verified 
2.69/2.71	c 
2.69/2.71	s SATISFIABLE
2.69/2.71	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 
2.69/2.71	v 0
2.69/2.71	c 
2.69/2.71	c  Running time=2.708588

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-3094403-1301754478/watcher-3094403-1301754478 -o /tmp/evaluation-result-3094403-1301754478/solver-3094403-1301754478 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094403-1301754478.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: 4.07 4.02 3.95 4/189 19081
/proc/meminfo: memFree=20953340/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=3216 CPUtime=0 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 366 0 0 0 0 0 0 0 25 0 1 0 287046267 3293184 305 33554432000 134512640 134731564 4287150912 18446744073709551615 134558976 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 804 305 232 54 0 114 0

[startup+0.09207 s]
/proc/loadavg: 4.07 4.02 3.95 4/189 19081
/proc/meminfo: memFree=20953340/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=3508 CPUtime=0.08 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 485 0 0 0 8 0 0 0 25 0 1 0 287046267 3592192 423 33554432000 134512640 134731564 4287150912 18446744073709551615 11990524 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 877 423 268 54 0 187 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3508

[startup+0.101055 s]
/proc/loadavg: 4.07 4.02 3.95 4/189 19081
/proc/meminfo: memFree=20953340/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=3508 CPUtime=0.09 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 496 0 0 0 9 0 0 0 25 0 1 0 287046267 3592192 434 33554432000 134512640 134731564 4287150912 18446744073709551615 134717115 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 877 434 268 54 0 187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3508

[startup+0.301023 s]
/proc/loadavg: 4.07 4.02 3.95 4/189 19081
/proc/meminfo: memFree=20953340/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=3904 CPUtime=0.29 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 586 0 0 0 29 0 0 0 25 0 1 0 287046267 3997696 524 33554432000 134512640 134731564 4287150912 18446744073709551615 134720159 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 976 524 268 54 0 286 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3904

[startup+0.700958 s]
/proc/loadavg: 4.07 4.02 3.95 4/189 19081
/proc/meminfo: memFree=20953340/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=4300 CPUtime=0.69 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 673 0 0 0 69 0 0 0 25 0 1 0 287046267 4403200 611 33554432000 134512640 134731564 4287150912 18446744073709551615 134721203 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 1075 611 268 54 0 385 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4300

[startup+1.50083 s]
/proc/loadavg: 4.07 4.02 3.95 5/190 19082
/proc/meminfo: memFree=20951620/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=4432 CPUtime=1.49 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 721 0 0 0 149 0 0 0 25 0 1 0 287046267 4538368 659 33554432000 134512640 134731564 4287150912 18446744073709551615 134605263 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 1108 659 271 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+2.30069 s]
/proc/loadavg: 4.07 4.02 3.95 5/190 19082
/proc/meminfo: memFree=20950752/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=4432 CPUtime=2.29 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 721 0 0 0 229 0 0 0 25 0 1 0 287046267 4538368 659 33554432000 134512640 134731564 4287150912 18446744073709551615 134606088 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 1108 659 271 54 0 418 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 4432

[startup+2.70062 s]
/proc/loadavg: 4.07 4.02 3.95 5/190 19082
/proc/meminfo: memFree=20950752/32951124 swapFree=67111528/67111528
[pid=19081] ppid=19079 vsize=4432 CPUtime=2.69 cores=4,6
/proc/19081/stat : 19081 (MPhaseSAT) R 19079 19081 17798 0 -1 4202496 721 0 0 0 269 0 0 0 25 0 1 0 287046267 4538368 659 33554432000 134512640 134731564 4287150912 18446744073709551615 134609019 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19081/statm: 1108 659 271 54 0 418 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 4432

Child status: 10
Real time (s): 2.71111
CPU time (s): 2.70959
CPU user time (s): 2.70859
CPU system time (s): 0.000999
CPU usage (%): 99.9437
Max. virtual memory (cumulated for all children) (KiB): 4432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.70859
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= 730
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= 4

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-02 16:27:58
IDJOB=3094403
IDBENCH=82885
IDSOLVER=1520
FILE ID=node130/3094403-1301754478
RUNJOBID= node130-1301748570-17817
PBS_JOBID= 12841007
Free space on /tmp= 71988 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S446351158-079.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094403-1301754478/watcher-3094403-1301754478 -o /tmp/evaluation-result-3094403-1301754478/solver-3094403-1301754478 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094403-1301754478.cnf

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

MD5SUM BENCH= 871f75d4bb41b463ca12a7a8837d201b
RANDOM SEED=1208806926

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.81
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.83
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20953496 kB
Buffers:        356328 kB
Cached:       11305104 kB
SwapCached:          0 kB
Active:        7231496 kB
Inactive:      4505512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20953496 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             340 kB
Writeback:           4 kB
AnonPages:       75924 kB
Mapped:          16952 kB
Slab:           196244 kB
PageTables:       5224 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   265652 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= 71988 MiB
End job on node130 at 2011-04-02 16:28:00