Trace number 3421391

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
QuteRSat 2011-05-12 (fixed)UNSAT 1.08983 1.09214

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_40.shuffled.cnf
MD5SUM15f5068fb216bf26d5385140ce74faaf
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 variables118
Number of clauses314
Sum of the clauses size940
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3312
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 Set FPU double precision.
0.00/0.00	c Parse Cnf success: #var: 118 #clause: 314
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          1
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :         78 AvgFaninNum: 2
0.00/0.00	c Find Ite   :          4
0.00/0.00	c UnDirect variable: 114
0.00/0.00	c UnDirect to Direct Gate: 46
0.00/0.00	c Forced Direct Gate: 34 Unuse unDirect Gate: 67
0.00/0.00	c Break Cycle : 3
0.00/0.00	c Total Root : 11 Undef Var: 73
0.00/0.00	c After covering, Total Root: 12 Leaf: 47
0.00/0.00	c Variable( cover/uncovered/unused ): 92 26 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 2 0
0.00/0.00	c Clauses( cover/uncovered ): 176 136
0.00/0.00	c Total Clauses( cover/uncovered ): 178 136 56.6879%
0.00/0.00	c Covered Ands: 0 Invs: 1 Xors: 43 Ites: 1
0.00/0.00	c Uncover Clauses avg size: 3 max size: 3
0.00/0.00	c Final circuit: i/l/o/s      73       0     136       404
0.00/0.00	c CnfToAig: Time: 0 s
0.00/0.02	c TmMap: Set choices finish.
0.00/0.02	c TmMap: Set big and: 136
0.00/0.02	c TmMap: Origin: 478 ClauseNum: 1212 --> New: 253 ClauseNum: 716
0.00/0.02	c TmMap: Time: 0
0.00/0.02	c Simulation --> TransNum: 716/716 Try to Add: #clause: 444 #xorclause: 0
0.00/0.02	c #var: 116 #clauses: 309 Solving... 
0.99/1.08	s UNSATISFIABLE
0.99/1.09	c CPU time: 1.08 s

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: 961)

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-3421391-1306632867/watcher-3421391-1306632867 -o /tmp/evaluation-result-3421391-1306632867/solver-3421391-1306632867 -C 5000 -W 5100 -M 15500 qutersat_release HOME/instance-3421391-1306632867.cnf 2090850257 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=26264 CPUtime=0 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4194304 279 0 0 0 0 0 0 0 18 0 1 0 507477979 26894336 229 33554432000 4194304 6014671 140734670888544 18446744073709551615 268655699432 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/488/statm: 6566 232 188 445 0 98 0

[startup+0.092297 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=54032 CPUtime=0.08 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 3714 0 0 0 8 0 0 0 18 0 1 0 507477979 55328768 3650 33554432000 4194304 6014671 140734670888544 18446744073709551615 268660358649 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 13508 3650 726 445 0 7053 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 54032

[startup+0.100296 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=54032 CPUtime=0.09 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 3739 0 0 0 9 0 0 0 18 0 1 0 507477979 55328768 3675 33554432000 4194304 6014671 140734670888544 18446744073709551615 4424451 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 13508 3675 726 445 0 7053 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 54032

[startup+0.300268 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=79488 CPUtime=0.29 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 4189 0 0 0 29 0 0 0 18 0 1 0 507477979 81395712 4125 33554432000 4194304 6014671 140734670888544 18446744073709551615 268660686743 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 19872 4125 727 445 0 13417 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 79488

[startup+0.700191 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=88084 CPUtime=0.69 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 4942 0 0 0 69 0 0 0 18 0 1 0 507477979 90198016 4878 33554432000 4194304 6014671 140734670888544 18446744073709551615 4535376 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 22021 4878 727 445 0 15566 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 88084

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

[startup+0.900154 s]
/proc/loadavg: 1.05 1.02 1.18 2/487 488
/proc/meminfo: memFree=16393112/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=88084 CPUtime=0.89 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 5126 0 0 0 89 0 0 0 19 0 1 0 507477979 90198016 5062 33554432000 4194304 6014671 140734670888544 18446744073709551615 4424049 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 22021 5062 727 445 0 15566 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 88084

[startup+1.00015 s]
/proc/loadavg: 1.12 1.04 1.18 4/489 490
/proc/meminfo: memFree=16351796/32951124 swapFree=46575304/67111528
[pid=488] ppid=483 vsize=88084 CPUtime=0.99 cores=1,3,5,7
/proc/488/stat : 488 (qutersat_releas) R 483 488 31758 0 -1 4202496 5245 0 0 0 99 0 0 0 19 0 1 0 507477979 90198016 5181 33554432000 4194304 6014671 140734670888544 18446744073709551615 4379136 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/488/statm: 22021 5181 727 445 0 15566 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 88084

Child status: 0
Real time (s): 1.09214
CPU time (s): 1.08983
CPU user time (s): 1.08583
CPU system time (s): 0.003999
CPU usage (%): 99.7889
Max. virtual memory (cumulated for all children) (KiB): 88084

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.08583
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5267
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= 30
involuntary context switches= 2

runsolver used 0.007998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node107 at 2011-05-29 03:34:27
IDJOB=3421391
IDBENCH=87817
IDSOLVER=1868
FILE ID=node107/3421391-1306632867
RUNJOBID= node107-1306632867-468
PBS_JOBID= 13471583
Free space on /tmp= 73532 MiB

SOLVER NAME= QuteRSat 2011-05-12 (fixed)
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_40.shuffled.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3421391-1306632867/watcher-3421391-1306632867 -o /tmp/evaluation-result-3421391-1306632867/solver-3421391-1306632867 -C 5000 -W 5100 -M 15500  qutersat_release HOME/instance-3421391-1306632867.cnf 2090850257

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 15f5068fb216bf26d5385140ce74faaf
RANDOM SEED=2090850257

node107.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		: 2666.829
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	: 5333.65
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		: 2666.829
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		: 2666.829
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	: 5332.67
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		: 2666.829
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	: 5332.82
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		: 2666.829
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	: 5332.74
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		: 2666.829
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	: 5359.47
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		: 2666.829
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		: 2666.829
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:      16393540 kB
Buffers:        328860 kB
Cached:        7215976 kB
SwapCached:       9840 kB
Active:       12032568 kB
Inactive:      4200668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16393540 kB
SwapTotal:    67111528 kB
SwapFree:     46575304 kB
Dirty:            3112 kB
Writeback:           0 kB
AnonPages:     8685600 kB
Mapped:          32324 kB
Slab:           161116 kB
PageTables:      94952 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 145074232 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= 73532 MiB
End job on node107 at 2011-05-29 03:34:28