Trace number 3379680

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
SApperloT2010 2011-05-15 (fixed)UNSAT 8.38372 8.39751

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 benchmark0.369943
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 

8.28/8.39	c Solved by BasicSolver 
8.28/8.39	
8.28/8.39	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: 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-3379680-1305460806/watcher-3379680-1305460806 -o /tmp/evaluation-result-3379680-1305460806/solver-3379680-1305460806 -C 2400 -W 1300 -M 7680 SApperloT2010 HOME/instance-3379680-1305460806.cnf 

running on 2 cores: 4,6

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: 3.71 3.98 3.95 5/394 9130
/proc/meminfo: memFree=30314324/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=11796 CPUtime=0 cores=4,6
/proc/9130/stat : 9130 (runsolver) R 9127 9130 8602 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 657679313 12079104 49 33554432000 4194304 5432360 140737023684448 18446744073709551615 4881623 0 2147483391 4096 24578 0 0 0 17 6 0 0 0
/proc/9130/statm: 2949 49 30 303 0 2643 0

[startup+0.0892089 s]
/proc/loadavg: 3.71 3.98 3.95 5/394 9130
/proc/meminfo: memFree=30314324/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=12436 CPUtime=0.07 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 536 0 0 0 7 0 0 0 25 0 1 0 657679313 12734464 475 33554432000 4194304 4394578 140736285042080 18446744073709551615 4298673 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 3109 475 266 49 0 250 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12436

[startup+0.100204 s]
/proc/loadavg: 3.71 3.98 3.95 5/394 9130
/proc/meminfo: memFree=30314324/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=12436 CPUtime=0.08 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 548 0 0 0 8 0 0 0 25 0 1 0 657679313 12734464 487 33554432000 4194304 4394578 140736285042080 18446744073709551615 4298923 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 3109 487 266 49 0 250 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 12436

[startup+0.300129 s]
/proc/loadavg: 3.71 3.98 3.95 5/394 9130
/proc/meminfo: memFree=30314324/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=12964 CPUtime=0.28 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 690 0 0 0 28 0 0 0 25 0 1 0 657679313 13275136 629 33554432000 4194304 4394578 140736285042080 18446744073709551615 4298862 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 3241 629 266 49 0 382 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 12964

[startup+0.70117 s]
/proc/loadavg: 3.71 3.98 3.95 5/394 9130
/proc/meminfo: memFree=30314324/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=13888 CPUtime=0.68 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 892 0 0 0 68 0 0 0 25 0 1 0 657679313 14221312 831 33554432000 4194304 4394578 140736285042080 18446744073709551615 4310176 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 3472 831 267 49 0 613 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 13888

[startup+1.50093 s]
/proc/loadavg: 3.71 3.98 3.95 5/395 9131
/proc/meminfo: memFree=30240032/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=15208 CPUtime=1.48 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 1222 0 0 0 148 0 0 0 25 0 1 0 657679313 15572992 1161 33554432000 4194304 4394578 140736285042080 18446744073709551615 251814264727 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 3802 1161 267 49 0 943 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 15208

[startup+3.10066 s]
/proc/loadavg: 3.71 3.98 3.95 5/395 9131
/proc/meminfo: memFree=30187308/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=17060 CPUtime=3.08 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 1686 0 0 0 308 0 0 0 25 0 1 0 657679313 17469440 1625 33554432000 4194304 4394578 140736285042080 18446744073709551615 4296582 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 4265 1625 267 49 0 1406 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 17060

[startup+6.30018 s]
/proc/loadavg: 3.73 3.98 3.95 5/398 9137
/proc/meminfo: memFree=29755076/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=19828 CPUtime=6.28 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 2384 0 0 0 628 0 0 0 25 0 1 0 657679313 20303872 2323 33554432000 4194304 4394578 140736285042080 18446744073709551615 4309930 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 4957 2323 267 49 0 2098 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 19828

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

[startup+7.10106 s]
/proc/loadavg: 3.73 3.98 3.95 5/398 9137
/proc/meminfo: memFree=29578516/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=20752 CPUtime=7.08 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 2621 0 0 0 708 0 0 0 25 0 1 0 657679313 21250048 2560 33554432000 4194304 4394578 140736285042080 18446744073709551615 4296457 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 5188 2560 267 49 0 2329 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 20752

[startup+7.90085 s]
/proc/loadavg: 3.73 3.98 3.95 5/398 9137
/proc/meminfo: memFree=29559424/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=21544 CPUtime=7.88 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 2835 0 0 0 788 0 0 0 25 0 1 0 657679313 22061056 2774 33554432000 4194304 4394578 140736285042080 18446744073709551615 4295838 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 5386 2774 267 49 0 2527 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 21544

[startup+8.30078 s]
/proc/loadavg: 3.73 3.98 3.95 5/398 9137
/proc/meminfo: memFree=29559424/32950928 swapFree=41934208/67111528
[pid=9130] ppid=9127 vsize=21676 CPUtime=8.28 cores=4,6
/proc/9130/stat : 9130 (SApperloT2010) R 9127 9130 8602 0 -1 4202496 2849 0 0 0 828 0 0 0 25 0 1 0 657679313 22196224 2788 33554432000 4194304 4394578 140736285042080 18446744073709551615 4299059 0 0 4096 6 0 0 0 17 4 0 0 0
/proc/9130/statm: 5419 2788 267 49 0 2560 0
Current children cumulated CPU time (s) 8.28
Current children cumulated vsize (KiB) 21676

Child status: 20
Real time (s): 8.39751
CPU time (s): 8.38372
CPU user time (s): 8.37773
CPU system time (s): 0.005999
CPU usage (%): 99.8359
Max. virtual memory (cumulated for all children) (KiB): 21676

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.37773
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2861
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= 5
involuntary context switches= 6

runsolver used 0.040993 second user time and 0.070989 second system time

The end

Launcher Data 

Begin job on node126 at 2011-05-15 14:00:06
IDJOB=3379680
IDBENCH=87444
IDSOLVER=1862
FILE ID=node126/3379680-1305460806
RUNJOBID= node126-1305460805-8918
PBS_JOBID= 13324901
Free space on /tmp= 73340 MiB

SOLVER NAME= SApperloT2010 2011-05-15 (fixed)
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= SApperloT2010 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3379680-1305460806/watcher-3379680-1305460806 -o /tmp/evaluation-result-3379680-1305460806/solver-3379680-1305460806 -C 2400 -W 1300 -M 7680  SApperloT2010 HOME/instance-3379680-1305460806.cnf

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

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=881577574

node126.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		: 2666.783
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	: 5333.56
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		: 2666.783
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		: 2666.783
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		: 2666.783
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	: 5332.74
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		: 2666.783
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	: 5332.80
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		: 2666.783
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		: 2666.783
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		: 2666.783
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      30314604 kB
Buffers:        173548 kB
Cached:        1706032 kB
SwapCached:      49560 kB
Active:         140068 kB
Inactive:      2248872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      30314604 kB
SwapTotal:    67111528 kB
SwapFree:     41934208 kB
Dirty:           24748 kB
Writeback:           0 kB
AnonPages:      472584 kB
Mapped:          10540 kB
Slab:           104904 kB
PageTables:      75756 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 88182264 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= 73248 MiB
End job on node126 at 2011-05-15 14:00:15