Trace number 3095005

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 0.811875 0.812939

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S328068950-002.SATISFIABLE.cnf
MD5SUM9a5f08397d2e05808da45bc73aa751c4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012998
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 

0.79/0.81	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.81	c input CNF file=HOME/instance-3095005-1301754434.cnf 
0.79/0.81	c Clause#=2130  var#=100  ratio=21 
0.79/0.81	c Simplified clause#=2130 
0.79/0.81	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.81	c inative var#=0 
0.79/0.81	c free var#=100  
0.79/0.81	c local search on 
0.79/0.81	c A solution found by local search 
0.79/0.81	c unfixed var#=0 var#=100 
0.79/0.81	c verified 
0.79/0.81	c 
0.79/0.81	s SATISFIABLE
0.79/0.81	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 
0.79/0.81	v 0
0.79/0.81	c 
0.79/0.81	c  Running time=0.810876

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-3095005-1301754434/watcher-3095005-1301754434 -o /tmp/evaluation-result-3095005-1301754434/solver-3095005-1301754434 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095005-1301754434.cnf 

running on 2 cores: 5,7

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: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=3164 CPUtime=0 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 382 0 0 0 0 0 0 0 25 0 1 0 287043842 3239936 320 33554432000 134512640 134761588 4292696080 18446744073709551615 10024016 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 791 320 237 61 0 94 0

[startup+0.04871 s]
/proc/loadavg: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=3320 CPUtime=0.04 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 384 0 0 0 4 0 0 0 25 0 1 0 287043842 3399680 322 33554432000 134512640 134761588 4292696080 18446744073709551615 134580572 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 830 322 237 61 0 133 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3320

[startup+0.100713 s]
/proc/loadavg: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=3720 CPUtime=0.09 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 558 0 0 0 9 0 0 0 25 0 1 0 287043842 3809280 496 33554432000 134512640 134761588 4292696080 18446744073709551615 134748103 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 930 496 273 61 0 233 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3720

[startup+0.300664 s]
/proc/loadavg: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=4796 CPUtime=0.29 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 828 0 0 0 29 0 0 0 25 0 1 0 287043842 4911104 766 33554432000 134512640 134761588 4292696080 18446744073709551615 134748321 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 1199 766 274 61 0 502 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4796

[startup+0.70059 s]
/proc/loadavg: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=5824 CPUtime=0.69 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 1183 0 0 0 69 0 0 0 25 0 1 0 287043842 5963776 1023 33554432000 134512640 134761588 4292696080 18446744073709551615 134748119 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 1456 1023 274 61 0 759 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5824

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

[startup+0.800573 s]
/proc/loadavg: 4.03 4.01 3.96 4/189 29355
/proc/meminfo: memFree=20054436/32951124 swapFree=67111528/67111528
[pid=29355] ppid=29353 vsize=5568 CPUtime=0.79 cores=5,7
/proc/29355/stat : 29355 (MPhaseSAT64) R 29353 29355 28478 0 -1 4202496 1186 0 0 0 79 0 0 0 25 0 1 0 287043842 5701632 962 33554432000 134512640 134761588 4292696080 18446744073709551615 134604921 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/29355/statm: 1392 962 277 61 0 695 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5568

Child status: 10
Real time (s): 0.812939
CPU time (s): 0.811875
CPU user time (s): 0.809876
CPU system time (s): 0.001999
CPU usage (%): 99.8691
Max. virtual memory (cumulated for all children) (KiB): 5824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.809876
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1195
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 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-02 16:27:14
IDJOB=3095005
IDBENCH=82887
IDSOLVER=1521
FILE ID=node105/3095005-1301754434
RUNJOBID= node105-1301748573-28499
PBS_JOBID= 12841031
Free space on /tmp= 71484 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S328068950-002.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095005-1301754434/watcher-3095005-1301754434 -o /tmp/evaluation-result-3095005-1301754434/solver-3095005-1301754434 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095005-1301754434.cnf

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

MD5SUM BENCH= 9a5f08397d2e05808da45bc73aa751c4
RANDOM SEED=1436333460

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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	: 5226.15
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		: 2666.825
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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	: 5332.74
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		: 2666.825
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		: 2666.825
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:      20054716 kB
Buffers:        368184 kB
Cached:       12168200 kB
SwapCached:          0 kB
Active:        7526384 kB
Inactive:      5089980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20054716 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             412 kB
Writeback:           0 kB
AnonPages:       79608 kB
Mapped:          16828 kB
Slab:           215964 kB
PageTables:       5284 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   262012 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= 71484 MiB
End job on node105 at 2011-04-02 16:27:15