Trace number 3439624

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
PicoSAT 941UNSAT 1.36979 1.37459

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_060.shuffled.cnf
MD5SUM8fb426184fc34ee36ee1bb5e07551b2d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.20681
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses936
Sum of the clauses size4520
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37
Number of clauses of size 4146
Number of clauses of size 5783
Number of clauses of size over 50

Solver Data 

1.29/1.37	s UNSATISFIABLE

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: 977)

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-3439624-1306938993/watcher-3439624-1306938993 -o /tmp/evaluation-result-3439624-1306938993/solver-3439624-1306938993 -C 5000 -W 5100 -M 15500 picosat HOME/instance-3439624-1306938993.cnf 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 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: 2.00 2.01 2.00 3/327 7759
/proc/meminfo: memFree=24326944/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1744 CPUtime=0 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 181 0 0 0 0 0 0 0 25 0 1 0 884129851 1785856 127 33554432000 134512640 134603332 4289803392 18446744073709551615 6002172 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 436 127 97 23 0 62 0

[startup+0.046709 s]
/proc/loadavg: 2.00 2.01 2.00 3/327 7759
/proc/meminfo: memFree=24326944/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1744 CPUtime=0.04 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 196 0 0 0 4 0 0 0 25 0 1 0 884129851 1785856 142 33554432000 134512640 134603332 4289803392 18446744073709551615 134550928 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 436 142 97 23 0 62 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1744

[startup+0.100701 s]
/proc/loadavg: 2.00 2.01 2.00 3/327 7759
/proc/meminfo: memFree=24326944/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1876 CPUtime=0.09 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 203 0 0 0 9 0 0 0 25 0 1 0 884129851 1921024 149 33554432000 134512640 134603332 4289803392 18446744073709551615 134551008 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 469 149 97 23 0 95 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1876

[startup+0.300663 s]
/proc/loadavg: 2.00 2.01 2.00 3/327 7759
/proc/meminfo: memFree=24326944/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1876 CPUtime=0.29 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 210 0 0 0 29 0 0 0 25 0 1 0 884129851 1921024 156 33554432000 134512640 134603332 4289803392 18446744073709551615 134550901 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 469 156 97 23 0 95 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1876

[startup+0.700599 s]
/proc/loadavg: 2.00 2.01 2.00 3/327 7759
/proc/meminfo: memFree=24326944/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1876 CPUtime=0.69 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 218 0 0 0 69 0 0 0 25 0 1 0 884129851 1921024 164 33554432000 134512640 134603332 4289803392 18446744073709551615 134566390 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 469 164 97 23 0 95 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1876

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

[startup+1.11152 s]
/proc/loadavg: 2.00 2.01 2.00 3/328 7760
/proc/meminfo: memFree=24326560/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=1876 CPUtime=1.1 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 227 0 0 0 110 0 0 0 25 0 1 0 884129851 1921024 173 33554432000 134512640 134603332 4289803392 18446744073709551615 134551067 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 469 173 97 23 0 95 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1876

[startup+1.30048 s]
/proc/loadavg: 2.00 2.01 2.00 3/328 7760
/proc/meminfo: memFree=24326560/32951124 swapFree=67056304/67111528
[pid=7759] ppid=7757 vsize=2008 CPUtime=1.29 cores=1,3,5,7
/proc/7759/stat : 7759 (picosat) R 7757 7759 7100 0 -1 4202496 231 0 0 0 129 0 0 0 25 0 1 0 884129851 2056192 177 33554432000 134512640 134603332 4289803392 18446744073709551615 134567411 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/7759/statm: 502 177 97 23 0 128 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 2008

Child status: 20
Real time (s): 1.37459
CPU time (s): 1.36979
CPU user time (s): 1.36879
CPU system time (s): 0.000999
CPU usage (%): 99.6507
Max. virtual memory (cumulated for all children) (KiB): 2008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.36879
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 235
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= 2
involuntary context switches= 4

runsolver used 0.005999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node110 at 2011-06-01 16:36:33
IDJOB=3439624
IDBENCH=87444
IDSOLVER=1934
FILE ID=node110/3439624-1306938993
RUNJOBID= node110-1306929561-7119
PBS_JOBID= 13488580
Free space on /tmp= 73872 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3439624-1306938993/watcher-3439624-1306938993 -o /tmp/evaluation-result-3439624-1306938993/solver-3439624-1306938993 -C 5000 -W 5100 -M 15500  picosat HOME/instance-3439624-1306938993.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=276691167

node110.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	: 5332.83
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	: 5332.83
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		: 2666.830
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	: 5332.76
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	: 5332.83
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	: 5332.74
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:      24327100 kB
Buffers:        243484 kB
Cached:        4451580 kB
SwapCached:       8652 kB
Active:        3775644 kB
Inactive:      4528072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24327100 kB
SwapTotal:    67111528 kB
SwapFree:     67056304 kB
Dirty:               0 kB
Writeback:          64 kB
AnonPages:     3606168 kB
Mapped:          27728 kB
Slab:           228300 kB
PageTables:      26924 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 75608592 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= 73872 MiB
End job on node110 at 2011-06-01 16:36:34