Trace number 3375242

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 2011-05-14 (fixed)SAT 0.876866 0.878438

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S1592669696-022.SATISFIABLE.cnf
MD5SUM23d58aabf220f78ecd3bc4380d2e7fb8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.100983
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 

0.79/0.87	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.79/0.87	c input CNF file=HOME/instance-3375242-1305449953.cnf 
0.79/0.87	c Clause#=3727  var#=175  ratio=21 
0.79/0.87	c Simplified clause#=3727 
0.79/0.87	c XOR_varElimination deleted var#=0 clauses#=3727 
0.79/0.87	c inative var#=0 
0.79/0.87	c free var#=175  
0.79/0.87	c local search on 
0.79/0.87	c A solution found by local search 
0.79/0.87	c unfixed var#=0 var#=175 
0.79/0.87	c verified 
0.79/0.87	c 
0.79/0.87	s SATISFIABLE
0.79/0.87	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 
0.79/0.87	v 0
0.79/0.87	c 
0.79/0.87	c  Running time=0.875867

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375242-1305449953/watcher-3375242-1305449953 -o /tmp/evaluation-result-3375242-1305449953/solver-3375242-1305449953 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375242-1305449953.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: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=12136 CPUtime=0 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 466 0 0 0 0 0 0 0 22 0 1 0 735225940 12427264 387 33554432000 4194304 4479436 140735018869728 18446744073709551615 4244211 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3034 387 279 70 0 154 0

[startup+0.0268779 s]
/proc/loadavg: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=12564 CPUtime=0.02 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 509 0 0 0 2 0 0 0 22 0 1 0 735225940 12865536 430 33554432000 4194304 4479436 140735018869728 18446744073709551615 4267454 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3141 430 282 70 0 261 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12564

[startup+0.100877 s]
/proc/loadavg: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=13024 CPUtime=0.09 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 727 0 0 0 9 0 0 0 22 0 1 0 735225940 13336576 648 33554432000 4194304 4479436 140735018869728 18446744073709551615 4352889 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3256 648 311 70 0 376 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13024

[startup+0.300832 s]
/proc/loadavg: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=13464 CPUtime=0.29 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 916 0 0 0 29 0 0 0 23 0 1 0 735225940 13787136 773 33554432000 4194304 4479436 140735018869728 18446744073709551615 4450996 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3366 773 325 70 0 486 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13464

[startup+0.700758 s]
/proc/loadavg: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=14748 CPUtime=0.69 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 1208 0 0 0 69 0 0 0 25 0 1 0 735225940 15101952 1065 33554432000 4194304 4479436 140735018869728 18446744073709551615 4295726 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3687 1065 328 70 0 807 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14748

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

[startup+0.800745 s]
/proc/loadavg: 2.49 3.65 4.12 4/365 25256
/proc/meminfo: memFree=25175412/32950928 swapFree=38710892/67111528
[pid=25256] ppid=25254 vsize=14748 CPUtime=0.79 cores=1,3
/proc/25256/stat : 25256 (MPhaseSAT64) R 25254 25256 24847 0 -1 4202496 1208 0 0 0 79 0 0 0 25 0 1 0 735225940 15101952 1065 33554432000 4194304 4479436 140735018869728 18446744073709551615 4296898 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/25256/statm: 3687 1065 328 70 0 807 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 14748

Child status: 10
Real time (s): 0.878438
CPU time (s): 0.876866
CPU user time (s): 0.876866
CPU system time (s): 0
CPU usage (%): 99.8211
Max. virtual memory (cumulated for all children) (KiB): 14748

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.876866
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1216
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= 4
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node113 at 2011-05-15 10:59:13
IDJOB=3375242
IDBENCH=82951
IDSOLVER=1855
FILE ID=node113/3375242-1305449953
RUNJOBID= node113-1305449952-25223
PBS_JOBID= 13324872
Free space on /tmp= 73484 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S1592669696-022.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375242-1305449953/watcher-3375242-1305449953 -o /tmp/evaluation-result-3375242-1305449953/solver-3375242-1305449953 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375242-1305449953.cnf

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

MD5SUM BENCH= 23d58aabf220f78ecd3bc4380d2e7fb8
RANDOM SEED=211200516

node113.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5332.76
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.83
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		: 2666.846
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:      25175336 kB
Buffers:        268324 kB
Cached:        2851192 kB
SwapCached:      93712 kB
Active:         793696 kB
Inactive:      6718852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      25175336 kB
SwapTotal:    67111528 kB
SwapFree:     38710892 kB
Dirty:            1236 kB
Writeback:           0 kB
AnonPages:     4310376 kB
Mapped:          14576 kB
Slab:           106600 kB
PageTables:      91996 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 87089148 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= 73484 MiB
End job on node113 at 2011-05-15 10:59:14