Trace number 3263993

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 1.00885 1.01373

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 

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  :         18 AvgFaninNum: 3.55556
0.00/0.01	c Find Ite   :          0
0.00/0.01	c UnDirect variable: 41
0.00/0.01	c UnDirect to Direct Gate: 16
0.00/0.01	c Forced Direct Gate: 16 Unuse unDirect Gate: 18
0.00/0.01	c Break Cycle : 1
0.00/0.01	c Total Root : 1 Undef Var: 26
0.00/0.01	c After covering, Total Root: 2 Leaf: 26
0.00/0.01	c Variable( cover/uncovered/unused ): 41 0 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 ): 220 52
0.00/0.01	c Total Clauses( cover/uncovered ): 220 52 80.8824%
0.00/0.01	c Covered Ands: 0 Invs: 0 Xors: 15 Ites: 0
0.00/0.01	c Uncover Clauses avg size: 5.46154 max size: 6
0.00/0.01	c Final circuit: i/l/o/s      26       0      52       248
0.00/0.01	c cover rate 80.8824
0.00/0.01	c rocky end  0 total 0
0.00/0.01	c covering time  0 total 0
0.99/1.01	c solve time  0.99 total 0.99
0.99/1.01	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: 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-3263993-1303573340/watcher-3263993-1303573340 -o /tmp/evaluation-result-3263993-1303573340/solver-3263993-1303573340 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3263993-1303573340.cnf 1518793888 

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: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=23572 CPUtime=0 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4194304 322 0 0 0 0 0 0 0 21 0 1 0 468934903 24137728 260 33554432000 4194304 4947581 140733311355120 18446744073709551615 47296416622880 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11348/statm: 5893 269 226 184 0 768 0

[startup+0.0573909 s]
/proc/loadavg: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=47232 CPUtime=0.04 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 2456 0 0 0 4 0 0 0 21 0 1 0 468934903 48365568 2390 33554432000 4194304 4947581 140733311355120 18446744073709551615 4399976 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 11808 2390 463 184 0 6683 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 47232

[startup+0.100396 s]
/proc/loadavg: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=55624 CPUtime=0.09 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 2559 0 0 0 9 0 0 0 21 0 1 0 468934903 56958976 2493 33554432000 4194304 4947581 140733311355120 18446744073709551615 4352454 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 13906 2493 463 184 0 8781 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 55624

[startup+0.300351 s]
/proc/loadavg: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=55624 CPUtime=0.28 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 2866 0 0 0 28 0 0 0 22 0 1 0 468934903 56958976 2800 33554432000 4194304 4947581 140733311355120 18446744073709551615 4353162 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 13906 2801 467 184 0 8781 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 55624

[startup+0.700279 s]
/proc/loadavg: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=64112 CPUtime=0.68 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 3365 0 0 0 68 0 0 0 23 0 1 0 468934903 65650688 3299 33554432000 4194304 4947581 140733311355120 18446744073709551615 4343405 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 16028 3299 469 184 0 10903 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 64112

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

[startup+0.900258 s]
/proc/loadavg: 3.78 3.96 3.93 5/189 11348
/proc/meminfo: memFree=14460820/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=81240 CPUtime=0.88 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 3867 0 0 0 88 0 0 0 25 0 1 0 468934903 83189760 3801 33554432000 4194304 4947581 140733311355120 18446744073709551615 4399850 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 20310 3801 469 184 0 15185 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 81240

[startup+1.00025 s]
/proc/loadavg: 3.80 3.96 3.93 5/185 11371
/proc/meminfo: memFree=14439712/32951124 swapFree=67111528/67111528
[pid=11348] ppid=11346 vsize=81240 CPUtime=0.99 cores=0,2
/proc/11348/stat : 11348 (synit_sat) R 11346 11348 10828 0 -1 4202496 3926 0 0 0 99 0 0 0 25 0 1 0 468934903 83189760 3860 33554432000 4194304 4947581 140733311355120 18446744073709551615 4400060 0 0 4096 24578 0 0 0 17 0 0 0 0
/proc/11348/statm: 20310 3860 469 184 0 15185 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 81240

Child status: 0
Real time (s): 1.01373
CPU time (s): 1.00885
CPU user time (s): 0.998848
CPU system time (s): 0.009998
CPU usage (%): 99.5184
Max. virtual memory (cumulated for all children) (KiB): 81240

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.998848
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= 3941
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= 2

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node108 at 2011-04-23 17:42:20
IDJOB=3263993
IDBENCH=84096
IDSOLVER=1571
FILE ID=node108/3263993-1303573340
RUNJOBID= node108-1303573339-11306
PBS_JOBID= 13150313
Free space on /tmp= 71396 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8ch.shuffled-as.sat03-1448.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3263993-1303573340/watcher-3263993-1303573340 -o /tmp/evaluation-result-3263993-1303573340/solver-3263993-1303573340 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3263993-1303573340.cnf 1518793888

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

MD5SUM BENCH= e5a54c3916792cf58c449b6e5b243188
RANDOM SEED=1518793888

node108.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		: 2666.820
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	: 5333.64
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		: 2666.820
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	: 5226.15
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		: 2666.820
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		: 2666.820
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	: 5332.77
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		: 2666.820
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	: 5332.82
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14461092 kB
Buffers:       2252124 kB
Cached:       15574240 kB
SwapCached:          0 kB
Active:        9932480 kB
Inactive:      7986984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14461092 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            9324 kB
Writeback:           0 kB
AnonPages:       91760 kB
Mapped:          16820 kB
Slab:           506288 kB
PageTables:       5436 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   311740 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= 71392 MiB
End job on node108 at 2011-04-23 17:42:21