Trace number 3265130

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 2011-02-15UNSAT 3.23451 3.23828

General information on the benchmark

NameSAT05/crafted/sabharwal05/counting/php/unsat/
easier/php-010-008.shuffled-as.sat05-1171.cnf
MD5SUM421970908f111607c59182237109849e
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.029994
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses370
Sum of the clauses size800
Maximum clause length8
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2360
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 510

Solver Data 

3.19/3.23	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
3.19/3.23	c input CNF file=HOME/instance-3265130-1303576741.cnf 
3.19/3.23	c Clause#=370  var#=80  ratio=4 
3.19/3.23	c Simplified clause#=370 
3.19/3.23	c XOR_varElimination deleted var#=0 clauses#=370 
3.19/3.23	c inative var#=0 
3.19/3.23	c free var#=70  
3.19/3.23	c local search off 
3.19/3.23	c 
3.19/3.23	s UNSATISFIABLE
3.19/3.23	c 
3.19/3.23	c  Running time=3.233509

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3265130-1303576741/watcher-3265130-1303576741 -o /tmp/evaluation-result-3265130-1303576741/solver-3265130-1303576741 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3265130-1303576741.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: 3.09 3.79 3.86 4/189 7101
/proc/meminfo: memFree=16251256/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=3036 CPUtime=0 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 348 0 0 0 0 0 0 0 25 0 1 0 469274500 3108864 288 33554432000 134512640 134731564 4290536976 18446744073709551615 134579461 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 759 288 238 54 0 69 0

[startup+0.100963 s]
/proc/loadavg: 3.09 3.79 3.86 4/189 7101
/proc/meminfo: memFree=16251256/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=3432 CPUtime=0.09 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 475 0 0 0 9 0 0 0 25 0 1 0 469274500 3514368 415 33554432000 134512640 134731564 4290536976 18446744073709551615 134720137 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 858 415 269 54 0 168 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.200945 s]
/proc/loadavg: 3.09 3.79 3.86 4/189 7101
/proc/meminfo: memFree=16251256/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=3696 CPUtime=0.19 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 524 0 0 0 19 0 0 0 25 0 1 0 469274500 3784704 464 33554432000 134512640 134731564 4290536976 18446744073709551615 134659748 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 924 464 269 54 0 234 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3696

[startup+0.300929 s]
/proc/loadavg: 3.09 3.79 3.86 4/189 7101
/proc/meminfo: memFree=16251256/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=3696 CPUtime=0.29 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 550 0 0 0 29 0 0 0 25 0 1 0 469274500 3784704 490 33554432000 134512640 134731564 4290536976 18446744073709551615 11788023 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 924 490 269 54 0 234 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3696

[startup+0.700858 s]
/proc/loadavg: 3.09 3.79 3.86 4/189 7101
/proc/meminfo: memFree=16251256/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=4096 CPUtime=0.69 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 642 0 0 0 69 0 0 0 25 0 1 0 469274500 4194304 582 33554432000 134512640 134731564 4290536976 18446744073709551615 134667400 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4096

[startup+1.50071 s]
/proc/loadavg: 3.09 3.79 3.86 5/190 7102
/proc/meminfo: memFree=16247676/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=4096 CPUtime=1.49 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 642 0 0 0 149 0 0 0 25 0 1 0 469274500 4194304 582 33554432000 134512640 134731564 4290536976 18446744073709551615 12077020 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4096

[startup+3.10042 s]
/proc/loadavg: 3.09 3.79 3.86 5/190 7102
/proc/meminfo: memFree=16246312/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=4096 CPUtime=3.09 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 642 0 0 0 309 0 0 0 25 0 1 0 469274500 4194304 582 33554432000 134512640 134731564 4290536976 18446744073709551615 134620745 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4096

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

[startup+3.2004 s]
/proc/loadavg: 3.09 3.79 3.86 5/190 7102
/proc/meminfo: memFree=16246312/32951124 swapFree=67111528/67111528
[pid=7101] ppid=7099 vsize=4096 CPUtime=3.19 cores=1,3
/proc/7101/stat : 7101 (MPhaseSAT) R 7099 7101 7014 0 -1 4202496 642 0 0 0 319 0 0 0 25 0 1 0 469274500 4194304 582 33554432000 134512640 134731564 4290536976 18446744073709551615 134721107 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/7101/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 4096

Child status: 20
Real time (s): 3.23828
CPU time (s): 3.23451
CPU user time (s): 3.23451
CPU system time (s): 0
CPU usage (%): 99.8836
Max. virtual memory (cumulated for all children) (KiB): 4096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.23451
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= 650
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= 8
involuntary context switches= 8

runsolver used 0.010998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node106 at 2011-04-23 18:39:01
IDJOB=3265130
IDBENCH=85447
IDSOLVER=1520
FILE ID=node106/3265130-1303576741
RUNJOBID= node106-1303576739-7034
PBS_JOBID= 13150321
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT05/crafted/sabharwal05/counting/php/unsat/easier/php-010-008.shuffled-as.sat05-1171.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265130-1303576741/watcher-3265130-1303576741 -o /tmp/evaluation-result-3265130-1303576741/solver-3265130-1303576741 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3265130-1303576741.cnf

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

MD5SUM BENCH= 421970908f111607c59182237109849e
RANDOM SEED=954067238

node106.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		: 2666.830
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	: 5333.66
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		: 2666.830
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	: 5226.20
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		: 2666.830
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		: 2666.830
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	: 5332.82
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16251288 kB
Buffers:       1983184 kB
Cached:       14077064 kB
SwapCached:          0 kB
Active:        9625792 kB
Inactive:      6512168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16251288 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1824 kB
Writeback:           0 kB
AnonPages:       77536 kB
Mapped:          16736 kB
Slab:           497208 kB
PageTables:       5312 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   259724 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= 71744 MiB
End job on node106 at 2011-04-23 18:39:04