Trace number 3349251

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
minisat hack: EBMiniSAT 2011-03-02UNSAT 4.12637 4.12678

General information on the benchmark

Nameapplication/jarvisalo/smtqfbv-aigs/
smtlib-qfbv-aigs-lfsr_004_127_112-tseitin.cnf
MD5SUMa78f49949ed32c6f8eea9d5e428c909d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.02439
Satisfiable
(Un)Satisfiability was proved
Number of variables350506
Number of clauses878969
Sum of the clauses size2050925
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2585978
Number of clauses of size 3292989
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.09/4.12	c WARNING: for repeatability, setting FPU to use double precision
4.09/4.12	c restarts              : 94
4.09/4.12	c conflicts             : 26964          (6660 /sec)
4.09/4.12	c decisions             : 189419         (0.00 % random) (46789 /sec)
4.09/4.12	c propagations          : 7210586        (1781102 /sec)
4.09/4.12	c conflict literals     : 2470664        (3.02 % deleted)
4.09/4.12	c Memory used           : 157.00 MB
4.09/4.12	c CPU time              : 4.04838 s
4.09/4.12	
4.09/4.12	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: 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-3349251-1304979597/watcher-3349251-1304979597 -o /tmp/evaluation-result-3349251-1304979597/solver-3349251-1304979597 -C 2400 -W 1300 -M 7680 HOME/ebminisat_release HOME/instance-3349251-1304979597.cnf -verb=0 

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: 3.59 2.46 2.70 4/364 1836
/proc/meminfo: memFree=5342588/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=21200 CPUtime=0 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 993 0 0 0 0 0 0 0 25 0 1 0 609556806 21708800 936 33554432000 4194304 4293939 140733828788784 18446744073709551615 4275250 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 5300 940 217 25 0 1933 0

[startup+0.0519791 s]
/proc/loadavg: 3.59 2.46 2.70 4/364 1836
/proc/meminfo: memFree=5342588/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=36632 CPUtime=0.04 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 5181 0 0 0 3 1 0 0 25 0 1 0 609556806 37511168 4781 33554432000 4194304 4293939 140733828788784 18446744073709551615 239476355781 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 9158 4784 218 25 0 5791 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 36632

[startup+0.100968 s]
/proc/loadavg: 3.59 2.46 2.70 4/364 1836
/proc/meminfo: memFree=5342588/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=49508 CPUtime=0.09 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 8776 0 0 0 8 1 0 0 25 0 1 0 609556806 50696192 7931 33554432000 4194304 4293939 140733828788784 18446744073709551615 239476355781 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 12377 7933 218 25 0 9010 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 49508

[startup+0.300931 s]
/proc/loadavg: 3.59 2.46 2.70 4/364 1836
/proc/meminfo: memFree=5342588/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=96972 CPUtime=0.29 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 21798 0 0 0 26 3 0 0 25 0 1 0 609556806 99299328 19781 33554432000 4194304 4293939 140733828788784 18446744073709551615 239476355781 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 24243 19783 219 25 0 20876 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 96972

[startup+0.700855 s]
/proc/loadavg: 3.59 2.46 2.70 4/364 1836
/proc/meminfo: memFree=5342588/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=147352 CPUtime=0.69 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 33734 0 0 0 65 4 0 0 25 0 1 0 609556806 150888448 30519 33554432000 4194304 4293939 140733828788784 18446744073709551615 4252339 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 36838 30519 225 25 0 33471 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 147352

[startup+1.5007 s]
/proc/loadavg: 3.59 2.46 2.70 5/365 1838
/proc/meminfo: memFree=5189792/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=156864 CPUtime=1.49 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 43424 0 0 0 143 6 0 0 25 0 1 0 609556806 160628736 31670 33554432000 4194304 4293939 140733828788784 18446744073709551615 4218857 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 39216 31670 225 25 0 35849 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 156864

[startup+3.1004 s]
/proc/loadavg: 3.63 2.49 2.71 5/365 1838
/proc/meminfo: memFree=5196612/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=141004 CPUtime=3.09 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 43984 0 0 0 303 6 0 0 25 0 1 0 609556806 144388096 28806 33554432000 4194304 4293939 140733828788784 18446744073709551615 4269190 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 35251 28806 244 25 0 31884 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 141004

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

[startup+3.90025 s]
/proc/loadavg: 3.63 2.49 2.71 5/365 1838
/proc/meminfo: memFree=5186180/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=141004 CPUtime=3.89 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 44597 0 0 0 382 7 0 0 25 0 1 0 609556806 144388096 29414 33554432000 4194304 4293939 140733828788784 18446744073709551615 4255909 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 35251 29414 244 25 0 31884 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 141004

[startup+4.10021 s]
/proc/loadavg: 3.63 2.49 2.71 5/365 1838
/proc/meminfo: memFree=5186180/32950928 swapFree=67056568/67111528
[pid=1836] ppid=1834 vsize=141004 CPUtime=4.09 cores=5,7
/proc/1836/stat : 1836 (ebminisat_relea) R 1834 1836 1165 0 -1 4202496 44646 0 0 0 402 7 0 0 25 0 1 0 609556806 144388096 29463 33554432000 4194304 4293939 140733828788784 18446744073709551615 4255633 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/1836/statm: 35251 29463 244 25 0 31884 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 141004

Child status: 20
Real time (s): 4.12678
CPU time (s): 4.12637
CPU user time (s): 4.04838
CPU system time (s): 0.077988
CPU usage (%): 99.9901
Max. virtual memory (cumulated for all children) (KiB): 161316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.04838
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 44679
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= 4
involuntary context switches= 10

runsolver used 0.012998 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node148 at 2011-05-10 00:19:57
IDJOB=3349251
IDBENCH=82444
IDSOLVER=1812
FILE ID=node148/3349251-1304979597
RUNJOBID= node148-1304979502-1633
PBS_JOBID= 13285665
Free space on /tmp= 30648 MiB

SOLVER NAME= minisat hack: EBMiniSAT 2011-03-02
BENCH NAME= SAT11/application/jarvisalo/smtqfbv-aigs/smtlib-qfbv-aigs-lfsr_004_127_112-tseitin.cnf
COMMAND LINE= DIR/ebminisat_release BENCHNAME  -verb=0
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3349251-1304979597/watcher-3349251-1304979597 -o /tmp/evaluation-result-3349251-1304979597/solver-3349251-1304979597 -C 2400 -W 1300 -M 7680  HOME/ebminisat_release HOME/instance-3349251-1304979597.cnf  -verb=0

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

MD5SUM BENCH= a78f49949ed32c6f8eea9d5e428c909d
RANDOM SEED=70122125

node148.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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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:     32950928 kB
MemFree:       5343240 kB
Buffers:        243604 kB
Cached:       23240396 kB
SwapCached:       8268 kB
Active:       11195880 kB
Inactive:     15619776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       5343240 kB
SwapTotal:    67111528 kB
SwapFree:     67056568 kB
Dirty:           29688 kB
Writeback:           0 kB
AnonPages:     3330020 kB
Mapped:          27668 kB
Slab:           697148 kB
PageTables:      30160 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 85197440 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= 30644 MiB
End job on node148 at 2011-05-10 00:20:02