Trace number 3264029

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
SApperloT 2011-03-23UNSAT 2.15167 2.15375

General information on the benchmark

NameSAT03/handmade/bevan/cnf/
marg3x3add8ch.shuffled-as.sat03-1448.cnf
MD5SUMe5a54c3916792cf58c449b6e5b243188
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables41
Number of clauses272
Sum of the clauses size1424
Maximum clause length6
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316
Number of clauses of size 432
Number of clauses of size 596
Number of clauses of size over 5128

Solver Data 

2.09/2.15	
2.09/2.15	s UNSATISFIABLE
2.09/2.15	c Reason for Unsat: Learned empty clause

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-3264029-1303573491/watcher-3264029-1303573491 -o /tmp/evaluation-result-3264029-1303573491/solver-3264029-1303573491 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3264029-1303573491.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: 3.38 3.87 3.88 4/184 11806
/proc/meminfo: memFree=14249212/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=11996 CPUtime=0 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 403 0 0 0 0 0 0 0 23 0 1 0 547579847 12283904 339 33554432000 4194304 4465733 140734962484592 18446744073709551615 4265327 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 2999 339 255 67 0 122 0

[startup+0.0692659 s]
/proc/loadavg: 3.38 3.87 3.88 4/184 11806
/proc/meminfo: memFree=14249212/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=12704 CPUtime=0.06 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 880 0 0 0 6 0 0 0 23 0 1 0 547579847 13008896 484 33554432000 4194304 4465733 140734962484592 18446744073709551615 4270833 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 3176 484 256 67 0 299 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12704

[startup+0.10026 s]
/proc/loadavg: 3.38 3.87 3.88 4/184 11806
/proc/meminfo: memFree=14249212/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=12916 CPUtime=0.09 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 1060 0 0 0 9 0 0 0 23 0 1 0 547579847 13225984 529 33554432000 4194304 4465733 140734962484592 18446744073709551615 4270686 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 3229 529 256 67 0 352 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12916

[startup+0.300225 s]
/proc/loadavg: 3.38 3.87 3.88 4/184 11806
/proc/meminfo: memFree=14249212/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=13800 CPUtime=0.29 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 1750 0 0 0 29 0 0 0 25 0 1 0 547579847 14131200 723 33554432000 4194304 4465733 140734962484592 18446744073709551615 4295948 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 3450 723 256 67 0 573 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13800

[startup+0.700155 s]
/proc/loadavg: 3.38 3.87 3.88 4/184 11806
/proc/meminfo: memFree=14249212/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=14820 CPUtime=0.69 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 2581 0 0 0 69 0 0 0 25 0 1 0 547579847 15175680 965 33554432000 4194304 4465733 140734962484592 18446744073709551615 4271237 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 3705 965 256 67 0 828 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14820

[startup+1.50101 s]
/proc/loadavg: 3.38 3.87 3.88 5/190 11817
/proc/meminfo: memFree=14236988/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=16360 CPUtime=1.49 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 3604 0 0 0 149 0 0 0 25 0 1 0 547579847 16752640 1177 33554432000 4194304 4465733 140734962484592 18446744073709551615 4271856 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 4090 1177 256 67 0 1213 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16360

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

[startup+1.90094 s]
/proc/loadavg: 3.38 3.87 3.88 5/190 11817
/proc/meminfo: memFree=14236988/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=23996 CPUtime=1.89 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 4488 0 0 0 189 0 0 0 25 0 1 0 547579847 24571904 888 33554432000 4194304 4465733 140734962484592 18446744073709551615 4343390 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 5999 888 271 67 0 3122 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 23996

[startup+2.10091 s]
/proc/loadavg: 3.43 3.87 3.88 5/190 11844
/proc/meminfo: memFree=14231896/32950940 swapFree=67111528/67111528
[pid=11806] ppid=11804 vsize=16268 CPUtime=2.09 cores=1,3
/proc/11806/stat : 11806 (SApperloT) R 11804 11806 11089 0 -1 4202496 4888 0 0 0 209 0 0 0 25 0 1 0 547579847 16658432 1218 33554432000 4194304 4465733 140734962484592 18446744073709551615 4260089 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/11806/statm: 4067 1218 283 67 0 1190 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 16268

Child status: 20
Real time (s): 2.15375
CPU time (s): 2.15167
CPU user time (s): 2.14167
CPU system time (s): 0.009998
CPU usage (%): 99.9034
Max. virtual memory (cumulated for all children) (KiB): 23996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.14167
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4897
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= 4
involuntary context switches= 8

runsolver used 0.008998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node117 at 2011-04-23 17:44:51
IDJOB=3264029
IDBENCH=84096
IDSOLVER=1657
FILE ID=node117/3264029-1303573491
RUNJOBID= node117-1303573491-11776
PBS_JOBID= 13150299
Free space on /tmp= 71464 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8ch.shuffled-as.sat03-1448.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3264029-1303573491/watcher-3264029-1303573491 -o /tmp/evaluation-result-3264029-1303573491/solver-3264029-1303573491 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3264029-1303573491.cnf

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

MD5SUM BENCH= e5a54c3916792cf58c449b6e5b243188
RANDOM SEED=395238144

node117.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		: 2666.849
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	: 5333.69
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.75
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		: 2666.849
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	: 5332.74
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      14249492 kB
Buffers:       2312772 kB
Cached:       15765060 kB
SwapCached:          0 kB
Active:       10467724 kB
Inactive:      7678280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      14249492 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1408 kB
Writeback:           0 kB
AnonPages:       67740 kB
Mapped:          14880 kB
Slab:           492052 kB
PageTables:       5128 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS:   232636 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= 71460 MiB
End job on node117 at 2011-04-23 17:44:53