Trace number 3159982

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
synit_sat 2011-03-03UNSAT 5.79612 5.80019

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S671776549-007.UNKNOWN.cnf
MD5SUM4d03caf8d8c1d1c9a2cc6f8b0ebca92b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.285956
Satisfiable
(Un)Satisfiability was proved
Number of variables250
Number of clauses1065
Sum of the clauses size3195
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31065
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c start  0 total 0
0.00/0.01	c Find Units :          0
0.00/0.01	c Find Invs  :          0
0.00/0.01	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.01	c Find Xors  :          0 AvgFaninNum: nan
0.00/0.01	c Find Ite   :          0
0.00/0.01	c UnDirect variable: 0
0.00/0.01	c UnDirect to Direct Gate: 0
0.00/0.01	c Forced Direct Gate: 0 Unuse unDirect Gate: 0
0.00/0.01	c Break Cycle : 0
0.00/0.01	c Total Root : 0 Undef Var: 250
0.00/0.01	c After covering, Total Root: 0 Leaf: 0
0.00/0.01	c Variable( cover/uncovered/unused ): 0 250 0
0.00/0.01	c Unit Clauses: 0
0.00/0.01	c Binary Clauses( cover/uncovered ): 0 0
0.00/0.01	c Clauses( cover/uncovered ): 0 1065
0.00/0.01	c Total Clauses( cover/uncovered ): 0 1065 0%
0.00/0.01	c Covered Ands: 0 Invs: 0 Xors: 0 Ites: 0
0.00/0.01	c Uncover Clauses avg size: 3 max size: 3
0.00/0.01	c Final circuit: i/l/o/s     250       0    1065      2121
0.00/0.01	c cover rate 0
0.00/0.01	c rocky end  0 total 0
0.00/0.01	c covering time  0 total 0
5.69/5.79	c solve time  5.78 total 5.78
5.69/5.79	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3159982-1301738343/watcher-3159982-1301738343 -o /tmp/evaluation-result-3159982-1301738343/solver-3159982-1301738343 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3159982-1301738343.cnf 756987471 

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: 3.91 3.98 3.92 5/189 12865
/proc/meminfo: memFree=21205176/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=23572 CPUtime=0 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4194304 343 0 0 0 0 0 0 0 25 0 1 0 285433009 24137728 281 33554432000 4194304 4947581 140735812714320 18446744073709551615 47739553722544 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/12865/statm: 5893 291 246 184 0 768 0

[startup+0.0318361 s]
/proc/loadavg: 3.91 3.98 3.92 5/189 12865
/proc/meminfo: memFree=21205176/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=39928 CPUtime=0.02 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 2632 0 0 0 2 0 0 0 25 0 1 0 285433009 40886272 2565 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399979 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 9982 2565 454 184 0 4857 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 39928

[startup+0.100826 s]
/proc/loadavg: 3.91 3.98 3.92 5/189 12865
/proc/meminfo: memFree=21205176/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=40952 CPUtime=0.09 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 2736 0 0 0 9 0 0 0 25 0 1 0 285433009 41934848 2669 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399472 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 10238 2669 456 184 0 5113 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 40952

[startup+0.300854 s]
/proc/loadavg: 3.91 3.98 3.92 5/189 12865
/proc/meminfo: memFree=21205176/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=49340 CPUtime=0.29 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 2956 0 0 0 29 0 0 0 25 0 1 0 285433009 50524160 2889 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399860 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 12335 2889 456 184 0 7210 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 49340

[startup+0.700726 s]
/proc/loadavg: 3.91 3.98 3.92 5/189 12865
/proc/meminfo: memFree=21205176/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=66412 CPUtime=0.69 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 3315 0 0 0 69 0 0 0 25 0 1 0 285433009 68005888 3248 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399974 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 16603 3248 456 184 0 11478 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 66412

[startup+1.50059 s]
/proc/loadavg: 3.91 3.98 3.92 5/190 12866
/proc/meminfo: memFree=21191660/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=75036 CPUtime=1.48 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 4704 0 0 0 148 0 0 0 25 0 1 0 285433009 76836864 4637 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 18759 4637 465 184 0 13634 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 75036

[startup+3.10038 s]
/proc/loadavg: 3.91 3.98 3.92 5/190 12866
/proc/meminfo: memFree=21182608/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=101216 CPUtime=3.09 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 5947 0 0 0 308 1 0 0 25 0 1 0 285433009 103645184 5879 33554432000 4194304 4947581 140735812714320 18446744073709551615 4400027 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 25304 5879 465 184 0 20179 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 101216

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

[startup+4.70105 s]
/proc/loadavg: 3.92 3.98 3.92 5/190 12866
/proc/meminfo: memFree=21175496/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=101216 CPUtime=4.69 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 6179 0 0 0 468 1 0 0 25 0 1 0 285433009 103645184 6111 33554432000 4194304 4947581 140735812714320 18446744073709551615 4400063 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 25304 6111 465 184 0 20179 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 101216

[startup+5.50698 s]
/proc/loadavg: 3.92 3.98 3.92 5/190 12866
/proc/meminfo: memFree=21174256/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=101216 CPUtime=5.49 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 6378 0 0 0 548 1 0 0 25 0 1 0 285433009 103645184 6310 33554432000 4194304 4947581 140735812714320 18446744073709551615 4400419 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 25304 6310 465 184 0 20179 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 101216

[startup+5.70088 s]
/proc/loadavg: 3.92 3.98 3.92 5/190 12866
/proc/meminfo: memFree=21174256/32950928 swapFree=67111528/67111528
[pid=12865] ppid=12863 vsize=101216 CPUtime=5.69 cores=4,6
/proc/12865/stat : 12865 (synit_sat) R 12863 12865 12153 0 -1 4202496 6378 0 0 0 568 1 0 0 25 0 1 0 285433009 103645184 6310 33554432000 4194304 4947581 140735812714320 18446744073709551615 4399976 0 0 4096 24578 0 0 0 17 4 0 0 0
/proc/12865/statm: 25304 6310 465 184 0 20179 0
Current children cumulated CPU time (s) 5.69
Current children cumulated vsize (KiB) 101216

Child status: 0
Real time (s): 5.80019
CPU time (s): 5.79612
CPU user time (s): 5.77812
CPU system time (s): 0.017997
CPU usage (%): 99.9298
Max. virtual memory (cumulated for all children) (KiB): 101216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.77812
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6401
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= 10
involuntary context switches= 5

runsolver used 0.012998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node126 at 2011-04-02 11:59:03
IDJOB=3159982
IDBENCH=83005
IDSOLVER=1571
FILE ID=node126/3159982-1301738343
RUNJOBID= node126-1301733063-12172
PBS_JOBID= 12840943
Free space on /tmp= 71684 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S671776549-007.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3159982-1301738343/watcher-3159982-1301738343 -o /tmp/evaluation-result-3159982-1301738343/solver-3159982-1301738343 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3159982-1301738343.cnf 756987471

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

MD5SUM BENCH= 4d03caf8d8c1d1c9a2cc6f8b0ebca92b
RANDOM SEED=756987471

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:      21205456 kB
Buffers:        345472 kB
Cached:       10712144 kB
SwapCached:          0 kB
Active:        7593292 kB
Inactive:      3884568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21205456 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2352 kB
Writeback:           0 kB
AnonPages:      420632 kB
Mapped:          17256 kB
Slab:           203408 kB
PageTables:       6164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   677804 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= 71680 MiB
End job on node126 at 2011-04-02 11:59:09