Trace number 3160005

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 2.26765 2.27192

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S1822479556-014.UNKNOWN.cnf
MD5SUM0c8d0957d77826a7c24d4ded86c5d721
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.135978
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 

0.00/0.00	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      2119
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
2.19/2.27	c solve time  2.25 total 2.25
2.19/2.27	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-3160005-1301738881/watcher-3160005-1301738881 -o /tmp/evaluation-result-3160005-1301738881/solver-3160005-1301738881 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3160005-1301738881.cnf 1897479705 

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: 4.00 4.02 4.00 5/193 16628
/proc/meminfo: memFree=20596456/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=26004 CPUtime=0 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 870 0 0 0 0 0 0 0 25 0 1 0 285485968 26628096 808 33554432000 4194304 4947581 140735693995600 18446744073709551615 255376995387 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16628/statm: 6501 819 261 184 0 1376 0

[startup+0.046894 s]
/proc/loadavg: 4.00 4.02 4.00 5/193 16628
/proc/meminfo: memFree=20596456/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=39932 CPUtime=0.04 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 2655 0 0 0 4 0 0 0 25 0 1 0 285485968 40890368 2589 33554432000 4194304 4947581 140735693995600 18446744073709551615 4399348 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 9983 2589 454 184 0 4858 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 39932

[startup+0.100913 s]
/proc/loadavg: 4.00 4.02 4.00 5/193 16628
/proc/meminfo: memFree=20596456/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=40956 CPUtime=0.09 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 2733 0 0 0 9 0 0 0 25 0 1 0 285485968 41938944 2667 33554432000 4194304 4947581 140735693995600 18446744073709551615 4400464 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 10239 2667 456 184 0 5114 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 40956

[startup+0.300873 s]
/proc/loadavg: 4.00 4.02 4.00 5/193 16628
/proc/meminfo: memFree=20596456/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=49332 CPUtime=0.29 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 2925 0 0 0 29 0 0 0 25 0 1 0 285485968 50515968 2859 33554432000 4194304 4947581 140735693995600 18446744073709551615 4399380 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 12333 2859 456 184 0 7208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 49332

[startup+0.700793 s]
/proc/loadavg: 4.00 4.02 4.00 5/193 16628
/proc/meminfo: memFree=20596456/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=66360 CPUtime=0.69 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 3257 0 0 0 69 0 0 0 25 0 1 0 285485968 67952640 3191 33554432000 4194304 4947581 140735693995600 18446744073709551615 4400315 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 16590 3191 456 184 0 11465 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 66360

[startup+1.50063 s]
/proc/loadavg: 4.00 4.02 4.00 5/194 16629
/proc/meminfo: memFree=20583676/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=74960 CPUtime=1.49 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 4521 0 0 0 149 0 0 0 25 0 1 0 285485968 76759040 4455 33554432000 4194304 4947581 140735693995600 18446744073709551615 4400416 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 18740 4455 465 184 0 13615 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 74960

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

[startup+1.90055 s]
/proc/loadavg: 4.00 4.02 4.00 5/194 16629
/proc/meminfo: memFree=20583676/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=83632 CPUtime=1.88 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 4721 0 0 0 188 0 0 0 25 0 1 0 285485968 85639168 4655 33554432000 4194304 4947581 140735693995600 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 20908 4655 465 184 0 15783 0
Current children cumulated CPU time (s) 1.88
Current children cumulated vsize (KiB) 83632

[startup+2.10052 s]
/proc/loadavg: 4.00 4.02 4.00 5/194 16629
/proc/meminfo: memFree=20576856/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=83632 CPUtime=2.09 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 5013 0 0 0 209 0 0 0 25 0 1 0 285485968 85639168 4946 33554432000 4194304 4947581 140735693995600 18446744073709551615 4491840 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 20908 4946 466 184 0 15783 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 83632

[startup+2.2065 s]
/proc/loadavg: 4.00 4.02 4.00 5/194 16629
/proc/meminfo: memFree=20576856/32951124 swapFree=67111528/67111528
[pid=16628] ppid=16626 vsize=83632 CPUtime=2.19 cores=0,2
/proc/16628/stat : 16628 (synit_sat) R 16626 16628 15886 0 -1 4202496 5029 0 0 0 219 0 0 0 25 0 1 0 285485968 85639168 4962 33554432000 4194304 4947581 140735693995600 18446744073709551615 4399806 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/16628/statm: 20908 4962 466 184 0 15783 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 83632

Child status: 0
Real time (s): 2.27192
CPU time (s): 2.26765
CPU user time (s): 2.25766
CPU system time (s): 0.009998
CPU usage (%): 99.8124
Max. virtual memory (cumulated for all children) (KiB): 83632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.25766
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= 5049
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= 3

runsolver used 0.009998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-02 12:08:01
IDJOB=3160005
IDBENCH=83028
IDSOLVER=1571
FILE ID=node135/3160005-1301738881
RUNJOBID= node135-1301733062-15904
PBS_JOBID= 12840934
Free space on /tmp= 71872 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S1822479556-014.UNKNOWN.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3160005-1301738881/watcher-3160005-1301738881 -o /tmp/evaluation-result-3160005-1301738881/solver-3160005-1301738881 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3160005-1301738881.cnf 1897479705

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

MD5SUM BENCH= 0c8d0957d77826a7c24d4ded86c5d721
RANDOM SEED=1897479705

node135.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		: 2666.851
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	: 5333.70
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		: 2666.851
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		: 2666.851
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		: 2666.851
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	: 6640.14
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		: 2666.851
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	: 5332.78
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		: 2666.851
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		: 2666.851
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		: 2666.851
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:     32951124 kB
MemFree:      20596604 kB
Buffers:        371700 kB
Cached:       11262908 kB
SwapCached:          0 kB
Active:        8324432 kB
Inactive:      3749972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20596604 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2392 kB
Writeback:           0 kB
AnonPages:      439960 kB
Mapped:          17240 kB
Slab:           217444 kB
PageTables:       6320 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   704664 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71872 MiB
End job on node135 at 2011-04-02 12:08:03