Trace number 3094233

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 1.18982 1.19296

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
MD5SUMb9af20624ed5bd46fea8950d0fddc198
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.18797
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
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 53727
Number of clauses of size over 50

Solver Data 

1.10/1.19	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.10/1.19	c input CNF file=HOME/instance-3094233-1301752508.cnf 
1.10/1.19	c Clause#=3727  var#=175  ratio=21 
1.10/1.19	c Simplified clause#=3727 
1.10/1.19	c XOR_varElimination deleted var#=0 clauses#=3727 
1.10/1.19	c inative var#=0 
1.10/1.19	c free var#=175  
1.10/1.19	c local search on 
1.10/1.19	c A solution found by local search 
1.10/1.19	c unfixed var#=0 var#=175 
1.10/1.19	c verified 
1.10/1.19	c 
1.10/1.19	s SATISFIABLE
1.10/1.19	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 -126 127 -128 -129 -130 -131 -132 133 -134 135 136 -137 138 -139 -140 -141 -142 143 -144 145 146 147 -148 -149 150 151 152 153 -154 155 -156 157 158 159 160 161 162 163 164 165 -166 167 168 169 -170 -171 172 173 174 175 
1.10/1.19	v 0
1.10/1.19	c 
1.10/1.19	c  Running time=1.188819

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-3094233-1301752508/watcher-3094233-1301752508 -o /tmp/evaluation-result-3094233-1301752508/solver-3094233-1301752508 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094233-1301752508.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: 3.79 3.95 3.89 5/189 10931
/proc/meminfo: memFree=18274924/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=3040 CPUtime=0 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 324 0 0 0 0 0 0 0 25 0 1 0 365481448 3112960 264 33554432000 134512640 134731564 4287490608 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 760 264 225 54 0 70 0

[startup+0.014565 s]
/proc/loadavg: 3.79 3.95 3.89 5/189 10931
/proc/meminfo: memFree=18274924/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=3488 CPUtime=0.01 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 419 0 0 0 1 0 0 0 25 0 1 0 365481448 3571712 357 33554432000 134512640 134731564 4287490608 18446744073709551615 134580496 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 872 357 238 54 0 182 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3488

[startup+0.100576 s]
/proc/loadavg: 3.79 3.95 3.89 5/189 10931
/proc/meminfo: memFree=18274924/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=3576 CPUtime=0.09 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 517 0 0 0 9 0 0 0 25 0 1 0 365481448 3661824 454 33554432000 134512640 134731564 4287490608 18446744073709551615 3634684 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 894 455 263 54 0 204 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3576

[startup+0.300547 s]
/proc/loadavg: 3.79 3.95 3.89 5/189 10931
/proc/meminfo: memFree=18274924/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=4104 CPUtime=0.29 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 642 0 0 0 29 0 0 0 25 0 1 0 365481448 4202496 579 33554432000 134512640 134731564 4287490608 18446744073709551615 134667719 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 1026 579 268 54 0 336 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4104

[startup+0.700471 s]
/proc/loadavg: 3.79 3.95 3.89 5/189 10931
/proc/meminfo: memFree=18274924/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=4368 CPUtime=0.69 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 720 0 0 0 69 0 0 0 25 0 1 0 365481448 4472832 657 33554432000 134512640 134731564 4287490608 18446744073709551615 3634684 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 1092 657 268 54 0 402 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4368

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

[startup+1.10639 s]
/proc/loadavg: 3.79 3.95 3.89 4/188 10933
/proc/meminfo: memFree=18420408/32950928 swapFree=67111528/67111528
[pid=10931] ppid=10929 vsize=4764 CPUtime=1.1 cores=1,3
/proc/10931/stat : 10931 (MPhaseSAT) R 10929 10931 10339 0 -1 4202496 818 0 0 0 110 0 0 0 25 0 1 0 365481448 4878336 755 33554432000 134512640 134731564 4287490608 18446744073709551615 134605872 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/10931/statm: 1191 755 271 54 0 501 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4764

Child status: 10
Real time (s): 1.19296
CPU time (s): 1.18982
CPU user time (s): 1.18682
CPU system time (s): 0.002999
CPU usage (%): 99.737
Max. virtual memory (cumulated for all children) (KiB): 4764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.18682
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= 827
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= 17

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node115 at 2011-04-02 15:55:08
IDJOB=3094233
IDBENCH=82715
IDSOLVER=1520
FILE ID=node115/3094233-1301752508
RUNJOBID= node115-1301748570-10359
PBS_JOBID= 12841022
Free space on /tmp= 71364 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094233-1301752508/watcher-3094233-1301752508 -o /tmp/evaluation-result-3094233-1301752508/solver-3094233-1301752508 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094233-1301752508.cnf

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

MD5SUM BENCH= b9af20624ed5bd46fea8950d0fddc198
RANDOM SEED=25615148

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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:      18275204 kB
Buffers:        395848 kB
Cached:       13697788 kB
SwapCached:          0 kB
Active:        9453856 kB
Inactive:      4916572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18275204 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1092 kB
Writeback:           0 kB
AnonPages:      276920 kB
Mapped:          16932 kB
Slab:           241204 kB
PageTables:       5680 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   461728 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= 71364 MiB
End job on node115 at 2011-04-02 15:55:09