Trace number 3375000

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 1.57276 1.58661

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v70-c6230-S1555786344-071.SATISFIABLE.cnf
MD5SUMf8817105cc2067c24c16bafe0c05427a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses6230
Sum of the clauses size43610
Maximum clause length7
Minimum clause length7
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 50
Number of clauses of size over 56230

Solver Data 

1.48/1.58	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.48/1.58	c input CNF file=HOME/instance-3375000-1305449081.cnf 
1.48/1.58	c Clause#=6230  var#=70  ratio=89 
1.48/1.58	c Simplified clause#=6230 
1.48/1.58	c XOR_varElimination deleted var#=0 clauses#=6230 
1.48/1.58	c inative var#=0 
1.48/1.58	c free var#=70  
1.48/1.58	c local search on 
1.48/1.58	c A solution found by local search 
1.48/1.58	c unfixed var#=0 var#=70 
1.48/1.58	c verified 
1.48/1.58	c 
1.48/1.58	s SATISFIABLE
1.48/1.58	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 
1.48/1.58	v 0
1.48/1.58	c 
1.48/1.58	c  Running time=1.571761

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-3375000-1305449081/watcher-3375000-1305449081 -o /tmp/evaluation-result-3375000-1305449081/solver-3375000-1305449081 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375000-1305449081.cnf 

running on 2 cores: 0,2

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: 3.96 4.00 3.73 5/369 31976
/proc/meminfo: memFree=18309384/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=11796 CPUtime=0 cores=0,2
/proc/31976/stat : 31976 (runsolver) R 31974 31976 31248 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 637324004 12079104 49 33554432000 4194304 5432360 140735210905568 18446744073709551615 4881623 0 2147483391 4096 24578 0 0 0 17 2 0 0 0
/proc/31976/statm: 2949 49 30 303 0 2643 0

[startup+0.111948 s]
/proc/loadavg: 3.96 4.00 3.73 5/369 31976
/proc/meminfo: memFree=18309384/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=14260 CPUtime=0.09 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1010 0 0 0 9 0 0 0 25 0 1 0 637324004 14602240 864 33554432000 4194304 4479436 140734535629648 18446744073709551615 4340958 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3565 864 303 70 0 685 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14260

[startup+0.200936 s]
/proc/loadavg: 3.96 4.00 3.73 5/369 31976
/proc/meminfo: memFree=18309384/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=14260 CPUtime=0.18 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1010 0 0 0 18 0 0 0 25 0 1 0 637324004 14602240 864 33554432000 4194304 4479436 140734535629648 18446744073709551615 4321298 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3565 864 303 70 0 685 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 14260

[startup+0.300916 s]
/proc/loadavg: 3.96 4.00 3.73 5/369 31976
/proc/meminfo: memFree=18309384/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=14772 CPUtime=0.28 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1152 0 0 0 28 0 0 0 25 0 1 0 637324004 15126528 1006 33554432000 4194304 4479436 140734535629648 18446744073709551615 4304678 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3693 1006 317 70 0 813 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 14772

[startup+0.700848 s]
/proc/loadavg: 3.96 4.00 3.73 5/369 31976
/proc/meminfo: memFree=18309384/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=15092 CPUtime=0.68 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1239 0 0 0 68 0 0 0 25 0 1 0 637324004 15454208 1093 33554432000 4194304 4479436 140734535629648 18446744073709551615 4380506 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3773 1093 324 70 0 893 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 15092

[startup+1.50069 s]
/proc/loadavg: 3.96 4.00 3.73 5/370 31978
/proc/meminfo: memFree=18304664/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=15736 CPUtime=1.48 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1744 0 0 0 148 0 0 0 25 0 1 0 637324004 16113664 1278 33554432000 4194304 4479436 140734535629648 18446744073709551615 4295148 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3934 1278 327 70 0 1054 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 15736

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

[startup+1.50069 s]
/proc/loadavg: 3.96 4.00 3.73 5/370 31978
/proc/meminfo: memFree=18304664/32951124 swapFree=67111348/67111528
[pid=31976] ppid=31974 vsize=15736 CPUtime=1.48 cores=0,2
/proc/31976/stat : 31976 (MPhaseSAT64) R 31974 31976 31248 0 -1 4202496 1744 0 0 0 148 0 0 0 25 0 1 0 637324004 16113664 1278 33554432000 4194304 4479436 140734535629648 18446744073709551615 4295148 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/31976/statm: 3934 1278 327 70 0 1054 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 15736

Child status: 10
Real time (s): 1.58661
CPU time (s): 1.57276
CPU user time (s): 1.56876
CPU system time (s): 0.003999
CPU usage (%): 99.1272
Max. virtual memory (cumulated for all children) (KiB): 17016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.56876
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1758
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= 21

runsolver used 0.010998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node145 at 2011-05-15 10:44:41
IDJOB=3375000
IDBENCH=82709
IDSOLVER=1855
FILE ID=node145/3375000-1305449081
RUNJOBID= node145-1305447772-31706
PBS_JOBID= 13324837
Free space on /tmp= 73668 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v70-c6230-S1555786344-071.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375000-1305449081/watcher-3375000-1305449081 -o /tmp/evaluation-result-3375000-1305449081/solver-3375000-1305449081 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375000-1305449081.cnf

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

MD5SUM BENCH= f8817105cc2067c24c16bafe0c05427a
RANDOM SEED=800607281

node145.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		: 2666.786
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	: 5333.57
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		: 2666.786
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		: 2666.786
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		: 2666.786
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	: 5332.83
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		: 2666.786
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	: 5332.82
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		: 2666.786
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		: 2666.786
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	: 5332.84
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		: 2666.786
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	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      18309416 kB
Buffers:        312604 kB
Cached:        8417536 kB
SwapCached:          0 kB
Active:        7519244 kB
Inactive:      6766828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18309416 kB
SwapTotal:    67111528 kB
SwapFree:     67111348 kB
Dirty:            1108 kB
Writeback:           0 kB
AnonPages:     5555764 kB
Mapped:          28696 kB
Slab:           256428 kB
PageTables:      34372 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 79484408 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= 73668 MiB
End job on node145 at 2011-05-15 10:44:43