Trace number 3281957

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 0.436933 0.437597

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor016.cnf
MD5SUM12a87f636ffe8e3dae243dd6ce90cac8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.161974
Satisfiable
(Un)Satisfiability was proved
Number of variables4271
Number of clauses12620
Sum of the clauses size29444
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28412
Number of clauses of size 34206
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.39/0.43	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.39/0.43	c input CNF file=HOME/instance-3281957-1303748238.cnf 
0.39/0.43	c Clause#=12620  var#=4271  ratio=2 
0.39/0.43	c phase 1 
0.39/0.43	c 
0.39/0.43	s UNSATISFIABLE
0.39/0.43	c 
0.39/0.43	c  Running time=0.434934

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-3281957-1303748238/watcher-3281957-1303748238 -o /tmp/evaluation-result-3281957-1303748238/solver-3281957-1303748238 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3281957-1303748238.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: 3.91 3.89 3.09 4/189 6147
/proc/meminfo: memFree=27368548/32951124 swapFree=67111524/67111528
[pid=6147] ppid=6145 vsize=3336 CPUtime=0 cores=5,7
/proc/6147/stat : 6147 (MPhaseSAT) R 6145 6147 5820 0 -1 4202496 333 0 0 0 0 0 0 0 25 0 1 0 467239738 3416064 275 33554432000 134512640 134731564 4294351568 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/6147/statm: 834 275 225 54 0 144 0

[startup+0.062297 s]
/proc/loadavg: 3.91 3.89 3.09 4/189 6147
/proc/meminfo: memFree=27368548/32951124 swapFree=67111524/67111528
[pid=6147] ppid=6145 vsize=5928 CPUtime=0.05 cores=5,7
/proc/6147/stat : 6147 (MPhaseSAT) R 6145 6147 5820 0 -1 4202496 1166 0 0 0 5 0 0 0 25 0 1 0 467239738 6070272 971 33554432000 134512640 134731564 4294351568 18446744073709551615 134659217 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/6147/statm: 1482 971 253 54 0 792 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5928

[startup+0.100288 s]
/proc/loadavg: 3.91 3.89 3.09 4/189 6147
/proc/meminfo: memFree=27368548/32951124 swapFree=67111524/67111528
[pid=6147] ppid=6145 vsize=6552 CPUtime=0.09 cores=5,7
/proc/6147/stat : 6147 (MPhaseSAT) R 6145 6147 5820 0 -1 4202496 1314 0 0 0 9 0 0 0 25 0 1 0 467239738 6709248 1110 33554432000 134512640 134731564 4294351568 18446744073709551615 134692164 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/6147/statm: 1638 1110 260 54 0 948 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6552

[startup+0.300253 s]
/proc/loadavg: 3.91 3.89 3.09 4/189 6147
/proc/meminfo: memFree=27368548/32951124 swapFree=67111524/67111528
[pid=6147] ppid=6145 vsize=6684 CPUtime=0.29 cores=5,7
/proc/6147/stat : 6147 (MPhaseSAT) R 6145 6147 5820 0 -1 4202496 1380 0 0 0 29 0 0 0 25 0 1 0 467239738 6844416 1175 33554432000 134512640 134731564 4294351568 18446744073709551615 134715453 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/6147/statm: 1671 1175 271 54 0 981 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6684

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

[startup+0.400234 s]
/proc/loadavg: 3.91 3.89 3.09 4/189 6147
/proc/meminfo: memFree=27368548/32951124 swapFree=67111524/67111528
[pid=6147] ppid=6145 vsize=6684 CPUtime=0.39 cores=5,7
/proc/6147/stat : 6147 (MPhaseSAT) R 6145 6147 5820 0 -1 4202496 1380 0 0 0 39 0 0 0 25 0 1 0 467239738 6844416 1175 33554432000 134512640 134731564 4294351568 18446744073709551615 3559644 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/6147/statm: 1671 1175 271 54 0 981 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 6684

Child status: 20
Real time (s): 0.437597
CPU time (s): 0.436933
CPU user time (s): 0.432934
CPU system time (s): 0.003999
CPU usage (%): 99.8482
Max. virtual memory (cumulated for all children) (KiB): 6684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.432934
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= 1388
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= 5

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-25 18:17:18
IDJOB=3281957
IDBENCH=70767
IDSOLVER=1520
FILE ID=node147/3281957-1303748238
RUNJOBID= node147-1303746801-5841
PBS_JOBID= 13154015
Free space on /tmp= 72172 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3281957-1303748238/watcher-3281957-1303748238 -o /tmp/evaluation-result-3281957-1303748238/solver-3281957-1303748238 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3281957-1303748238.cnf

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

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=1761879408

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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	: 5332.75
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		: 2666.836
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		: 2666.836
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		: 2666.836
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:      27368704 kB
Buffers:        940928 kB
Cached:        3849304 kB
SwapCached:          4 kB
Active:         786640 kB
Inactive:      4348056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      27368704 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            9148 kB
Writeback:           0 kB
AnonPages:      344216 kB
Mapped:          16576 kB
Slab:           380384 kB
PageTables:       5836 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   533488 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= 72172 MiB
End job on node147 at 2011-04-25 18:17:19