Trace number 3376800

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 0.928857 0.928804

General information on the benchmark

NameSAT02/handmade/chu-min-li/urquhart/
urquhart3_25bis.shuffled.cnf
MD5SUM0313821ef13a43b48c58a56902d9e90b
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 variables99
Number of clauses264
Sum of the clauses size792
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3264
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.
0.00/0.01	c Parse Cnf success: #var: 99 #clause: 264
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  :         66 AvgFaninNum: 2
0.00/0.01	c Find Ite   :          0
0.00/0.01	c UnDirect variable: 99
0.00/0.01	c UnDirect to Direct Gate: 66
0.00/0.01	c Forced Direct Gate: 53 Unuse unDirect Gate: 46
0.00/0.01	c Break Cycle : 1
0.00/0.01	c Total Root : 0 Undef Var: 34
0.00/0.01	c After covering, Total Root: 2 Leaf: 34
0.00/0.01	c Variable( cover/uncovered/unused ): 99 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 ): 260 4
0.00/0.01	c Total Clauses( cover/uncovered ): 260 4 98.4848%
0.00/0.01	c Covered Ands: 0 Invs: 0 Xors: 65 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      34       0       4       203
0.00/0.01	c CnfToAig: Time: 0 s
0.00/0.01	c TmMap: Set choices finish.
0.00/0.01	c TmMap: Set big and: 4
0.00/0.01	c TmMap: Origin: 238 ClauseNum: 609 --> New: 104 ClauseNum: 276
0.00/0.01	c TmMap: Time: 0
0.00/0.02	c Simulation --> TransNum: 276/276 Try to Add: #clause: 268 #xorclause: 0
0.00/0.02	c #var: 99 #clauses: 265 Solving... 
0.89/0.91	s UNSATISFIABLE
0.89/0.92	c CPU time: 0.92 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-3376800-1305476058/watcher-3376800-1305476058 -o /tmp/evaluation-result-3376800-1305476058/solver-3376800-1305476058 -C 2400 -W 1300 -M 7680 qutersat_release HOME/instance-3376800-1305476058.cnf 1292369427 

running on 2 cores: 5,7

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: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=36460 CPUtime=0.01 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 3014 0 0 0 1 0 0 0 23 0 1 0 659205444 37335040 2950 33554432000 4194304 6014671 140735282208512 18446744073709551615 4778066 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 9115 2953 619 445 0 2660 0

[startup+0.103849 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=54048 CPUtime=0.09 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 3742 0 0 0 9 0 0 0 23 0 1 0 659205444 55345152 3678 33554432000 4194304 6014671 140735282208512 18446744073709551615 4423927 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 13512 3678 726 445 0 7057 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 54048

[startup+0.200835 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=71064 CPUtime=0.19 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 4027 0 0 0 19 0 0 0 24 0 1 0 659205444 72769536 3963 33554432000 4194304 6014671 140735282208512 18446744073709551615 4424029 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 17766 3963 726 445 0 11311 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 71064

[startup+0.3008 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=79668 CPUtime=0.29 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 4242 0 0 0 29 0 0 0 25 0 1 0 659205444 81580032 4178 33554432000 4194304 6014671 140735282208512 18446744073709551615 4424571 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 19917 4178 726 445 0 13462 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 79668

[startup+0.700744 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=97180 CPUtime=0.69 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 5081 0 0 0 69 0 0 0 25 0 1 0 659205444 99512320 5017 33554432000 4194304 6014671 140735282208512 18446744073709551615 4378607 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 24295 5017 727 445 0 17840 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 97180

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

[startup+0.800714 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=97180 CPUtime=0.79 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 5155 0 0 0 79 0 0 0 25 0 1 0 659205444 99512320 5091 33554432000 4194304 6014671 140735282208512 18446744073709551615 4376497 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 24295 5091 727 445 0 17840 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 97180

[startup+0.900698 s]
/proc/loadavg: 2.76 3.04 3.39 2/292 19894
/proc/meminfo: memFree=16533624/32951132 swapFree=67093824/67111528
[pid=19894] ppid=19892 vsize=97180 CPUtime=0.89 cores=5,7
/proc/19894/stat : 19894 (qutersat_releas) R 19892 19894 18511 0 -1 4202496 5219 0 0 0 89 0 0 0 25 0 1 0 659205444 99512320 5155 33554432000 4194304 6014671 140735282208512 18446744073709551615 274664505099 0 0 4096 16386 0 0 0 17 5 0 0 0
/proc/19894/statm: 24295 5155 727 445 0 17840 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 97180

Child status: 0
Real time (s): 0.928804
CPU time (s): 0.928857
CPU user time (s): 0.921859
CPU system time (s): 0.006998
CPU usage (%): 100.006
Max. virtual memory (cumulated for all children) (KiB): 97180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.921859
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5240
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= 3

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node131 at 2011-05-15 18:14:18
IDJOB=3376800
IDBENCH=87848
IDSOLVER=1856
FILE ID=node131/3376800-1305476058
RUNJOBID= node131-1305476058-19875
PBS_JOBID= 13325314
Free space on /tmp= 73708 MiB

SOLVER NAME= QuteRSat 2011-05-12 (fixed)
BENCH NAME= SAT02/handmade/chu-min-li/urquhart/urquhart3_25bis.shuffled.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3376800-1305476058/watcher-3376800-1305476058 -o /tmp/evaluation-result-3376800-1305476058/solver-3376800-1305476058 -C 2400 -W 1300 -M 7680  qutersat_release HOME/instance-3376800-1305476058.cnf 1292369427

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

MD5SUM BENCH= 0313821ef13a43b48c58a56902d9e90b
RANDOM SEED=1292369427

node131.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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	: 5332.77
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      16534524 kB
Buffers:        295556 kB
Cached:        4363584 kB
SwapCached:       1504 kB
Active:       12664680 kB
Inactive:      3485764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      16534524 kB
SwapTotal:    67111528 kB
SwapFree:     67093824 kB
Dirty:            3540 kB
Writeback:           0 kB
AnonPages:    11490224 kB
Mapped:          28836 kB
Slab:           168124 kB
PageTables:      35656 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 29822784 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73700 MiB
End job on node131 at 2011-05-15 18:14:19