Trace number 3281999

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
SArTagnan 2011-03-24UNSAT 2.66659 0.683537

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 

0.52/0.68	
0.52/0.68	s UNSATISFIABLE
0.52/0.68	c Import unit

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-3281999-1304041641/watcher-3281999-1304041641 -o /tmp/evaluation-result-3281999-1304041641/solver-3281999-1304041641 -C 4800 -W 1300 -M 15500 SArTagnan HOME/instance-3281999-1304041641.cnf -threads=4 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 4800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 4830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 7.83 8.05 8.00 5/178 7034
/proc/meminfo: memFree=24855024/32951132 swapFree=67111364/67111528
[pid=7034] ppid=7032 vsize=19528 CPUtime=0 cores=0,2,4,6
/proc/7034/stat : 7034 (SArTagnan) R 7032 7034 6266 0 -1 4202496 643 0 0 0 0 0 0 0 23 0 1 0 515762737 19996672 580 33554432000 4194304 4623224 140737176444832 18446744073709551615 4366247 0 0 4096 2 0 0 0 17 4 0 0 0
/proc/7034/statm: 4882 581 297 105 0 386 0

[startup+0.017732 s]
/proc/loadavg: 7.83 8.05 8.00 5/178 7034
/proc/meminfo: memFree=24855024/32951132 swapFree=67111364/67111528
[pid=7034] ppid=7032 vsize=52152 CPUtime=0.02 cores=0,2,4,6
/proc/7034/stat : 7034 (SArTagnan) R 7032 7034 6266 0 -1 4202496 1080 0 0 0 2 0 0 0 23 0 4 0 515762737 53403648 1016 33554432000 4194304 4623224 140737176444832 18446744073709551615 47295978145714 0 0 4096 2 18446744073709551615 0 0 17 4 0 0 0
/proc/7034/statm: 13038 1016 306 105 0 8542 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 52152

[startup+0.125321 s]
/proc/loadavg: 7.83 8.05 8.00 5/178 7034
/proc/meminfo: memFree=24855024/32951132 swapFree=67111364/67111528
[pid=7034] ppid=7032 vsize=252344 CPUtime=0.52 cores=0,2,4,6
/proc/7034/stat : 7034 (SArTagnan) R 7032 7034 6266 0 -1 4202496 6497 0 0 0 51 1 0 0 25 0 4 0 515762737 258400256 4231 33554432000 4194304 4623224 140737176444832 18446744073709551615 4285530 0 0 4096 2 18446744073709551615 0 0 17 2 0 0 0
/proc/7034/statm: 63755 3993 342 105 0 59259 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 252344

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

Child status: 20
Real time (s): 0.683537
CPU time (s): 2.66659
CPU user time (s): 2.6416
CPU system time (s): 0.024996
CPU usage (%): 390.117
Max. virtual memory (cumulated for all children) (KiB): 252344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6416
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15337
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= 156
involuntary context switches= 8

runsolver used 0 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-29 03:47:21
IDJOB=3281999
IDBENCH=70767
IDSOLVER=1656
FILE ID=node128/3281999-1304041641
RUNJOBID= node128-1304040269-6855
PBS_JOBID= 13170357
Free space on /tmp= 66952 MiB

SOLVER NAME= SArTagnan 2011-03-24
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor016.cnf
COMMAND LINE= SArTagnan BENCHNAME -threads=NBCORE
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3281999-1304041641/watcher-3281999-1304041641 -o /tmp/evaluation-result-3281999-1304041641/solver-3281999-1304041641 -C 4800 -W 1300 -M 15500  SArTagnan HOME/instance-3281999-1304041641.cnf -threads=4

TIME LIMIT= 4800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 12a87f636ffe8e3dae243dd6ce90cac8
RANDOM SEED=750853181

node128.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      24855312 kB
Buffers:       1263732 kB
Cached:        4380756 kB
SwapCached:        160 kB
Active:        2002252 kB
Inactive:      5505068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      24855312 kB
SwapTotal:    67111528 kB
SwapFree:     67111364 kB
Dirty:             688 kB
Writeback:          40 kB
AnonPages:     1862404 kB
Mapped:          15760 kB
Slab:           523740 kB
PageTables:       8164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  2414212 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66952 MiB
End job on node128 at 2011-04-29 03:47:22