Trace number 3293086

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 13.7499 13.7509

General information on the benchmark

NameSAT02/industrial/goldberg/rand_net/
rand_net60-25-10.shuffled.cnf
MD5SUMdd1af4a49cb180c38b205e527a19fa4c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables3000
Number of clauses8881
Sum of the clauses size20940
Maximum clause length60
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 25760
Number of clauses of size 33120
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

Solver Data 

13.69/13.74	
13.69/13.74	s UNSATISFIABLE
13.69/13.74	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-3293086-1303792633/watcher-3293086-1303792633 -o /tmp/evaluation-result-3293086-1303792633/solver-3293086-1303792633 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3293086-1303792633.cnf 

running on 2 cores: 0,2

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: 3.11 3.79 3.70 2/176 26955
/proc/meminfo: memFree=15984056/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=12256 CPUtime=0 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 521 0 0 0 0 0 0 0 25 0 1 0 471678897 12550144 401 33554432000 4194304 4465733 140733738027744 18446744073709551615 4295790 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3064 401 256 67 0 187 0

[startup+0.094195 s]
/proc/loadavg: 3.11 3.79 3.70 2/176 26955
/proc/meminfo: memFree=15984056/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=12912 CPUtime=0.09 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 737 0 0 0 9 0 0 0 25 0 1 0 471678897 13221888 527 33554432000 4194304 4465733 140733738027744 18446744073709551615 4271132 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3228 527 256 67 0 351 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12912

[startup+0.100244 s]
/proc/loadavg: 3.11 3.79 3.70 2/176 26955
/proc/meminfo: memFree=15984056/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=12912 CPUtime=0.09 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 745 0 0 0 9 0 0 0 25 0 1 0 471678897 13221888 532 33554432000 4194304 4465733 140733738027744 18446744073709551615 264726429591 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3228 532 256 67 0 351 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12912

[startup+0.3002 s]
/proc/loadavg: 3.11 3.79 3.70 2/176 26955
/proc/meminfo: memFree=15984056/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=15308 CPUtime=0.29 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 1153 0 0 0 29 0 0 0 25 0 1 0 471678897 15675392 859 33554432000 4194304 4465733 140733738027744 18446744073709551615 4300967 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3827 859 281 67 0 950 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15308

[startup+0.701122 s]
/proc/loadavg: 3.11 3.79 3.70 2/176 26955
/proc/meminfo: memFree=15984056/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=15732 CPUtime=0.69 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 1437 0 0 0 69 0 0 0 25 0 1 0 471678897 16109568 1014 33554432000 4194304 4465733 140733738027744 18446744073709551615 4304340 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3933 1014 281 67 0 1056 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15732

[startup+1.50097 s]
/proc/loadavg: 3.11 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15944532/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=14872 CPUtime=1.49 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 1988 0 0 0 149 0 0 0 25 0 1 0 471678897 15228928 1011 33554432000 4194304 4465733 140733738027744 18446744073709551615 4270837 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 3718 1011 281 67 0 841 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14872

[startup+3.10067 s]
/proc/loadavg: 3.11 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15936356/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=17920 CPUtime=3.09 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 3439 0 0 0 309 0 0 0 25 0 1 0 471678897 18350080 1721 33554432000 4194304 4465733 140733738027744 18446744073709551615 4270779 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 4480 1721 281 67 0 1603 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17920

[startup+6.30108 s]
/proc/loadavg: 3.18 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15918628/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=22548 CPUtime=6.29 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 4687 0 0 0 629 0 0 0 25 0 1 0 471678897 23089152 2801 33554432000 4194304 4465733 140733738027744 18446744073709551615 4270622 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 5637 2801 283 67 0 2760 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 22548

[startup+12.7009 s]
/proc/loadavg: 3.25 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15890400/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=31884 CPUtime=12.69 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 5683 0 0 0 1269 0 0 0 25 0 1 0 471678897 32649216 3155 33554432000 4194304 4465733 140733738027744 18446744073709551615 4370999 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 7971 3155 281 67 0 5094 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 31884

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

[startup+13.5007 s]
/proc/loadavg: 3.25 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15890152/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=31884 CPUtime=13.49 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 5686 0 0 0 1349 0 0 0 25 0 1 0 471678897 32649216 3158 33554432000 4194304 4465733 140733738027744 18446744073709551615 4284707 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 7971 3158 283 67 0 5094 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 31884

[startup+13.7007 s]
/proc/loadavg: 3.25 3.79 3.70 5/190 26982
/proc/meminfo: memFree=15890152/32951124 swapFree=67111528/67111528
[pid=26955] ppid=26953 vsize=31884 CPUtime=13.69 cores=0,2
/proc/26955/stat : 26955 (SApperloT) R 26953 26955 26921 0 -1 4202496 5686 0 0 0 1369 0 0 0 25 0 1 0 471678897 32649216 3158 33554432000 4194304 4465733 140733738027744 18446744073709551615 4270804 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/26955/statm: 7971 3158 283 67 0 5094 0
Current children cumulated CPU time (s) 13.69
Current children cumulated vsize (KiB) 31884

Child status: 20
Real time (s): 13.7509
CPU time (s): 13.7499
CPU user time (s): 13.7409
CPU system time (s): 0.008998
CPU usage (%): 99.9929
Max. virtual memory (cumulated for all children) (KiB): 33296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.7409
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5691
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= 31

runsolver used 0.020996 second user time and 0.056991 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-26 06:37:13
IDJOB=3293086
IDBENCH=88026
IDSOLVER=1657
FILE ID=node141/3293086-1303792633
RUNJOBID= node141-1303792633-26939
PBS_JOBID= 13157277
Free space on /tmp= 71752 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT02/industrial/goldberg/rand_net/rand_net60-25-10.shuffled.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3293086-1303792633/watcher-3293086-1303792633 -o /tmp/evaluation-result-3293086-1303792633/solver-3293086-1303792633 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3293086-1303792633.cnf

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

MD5SUM BENCH= dd1af4a49cb180c38b205e527a19fa4c
RANDOM SEED=496676725

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.84
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:      15984460 kB
Buffers:       1599532 kB
Cached:       14726188 kB
SwapCached:          0 kB
Active:        6352984 kB
Inactive:     10037080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15984460 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             604 kB
Writeback:           0 kB
AnonPages:       64664 kB
Mapped:          14712 kB
Slab:           510208 kB
PageTables:       5044 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   187624 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= 71744 MiB
End job on node141 at 2011-04-26 06:37:27