Trace number 3394279

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
MPhaseSAT64 2011-05-14 (fixed)UNSAT 1.3278 1.32819

General information on the benchmark

Nameapplication/jarvisalo/smtqfbv-aigs/
smtlib-qfbv-aigs-ext_con_032_008_0256-tseitin.cnf
MD5SUMee9a3768141236efcc4a858e8f92a7e9
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.347946
Satisfiable
(Un)Satisfiability was proved
Number of variables27224
Number of clauses68879
Sum of the clauses size160715
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 245918
Number of clauses of size 322959
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.29/1.32	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.29/1.32	c input CNF file=HOME/instance-3394279-1306075493.cnf 
1.29/1.32	c Clause#=68879  var#=27224  ratio=2 
1.29/1.32	c Simplified clause#=68715 
1.29/1.32	c inative var#=0 
1.29/1.32	c old elimination clauses #=137421 
1.29/1.32	c free var#=9575  
1.29/1.32	c 
1.29/1.32	s UNSATISFIABLE
1.29/1.32	c 
1.29/1.32	c  Running time=1.325798

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-3394279-1306075493/watcher-3394279-1306075493 -o /tmp/evaluation-result-3394279-1306075493/solver-3394279-1306075493 -C 5000 -W 5100 -M 15500 MPhaseSAT64 HOME/instance-3394279-1306075493.cnf 

running on 4 cores: 0,2,4,6

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: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=14024 CPUtime=0 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 401 0 0 0 0 0 0 0 25 0 1 0 797779965 14360576 343 33554432000 4194304 4479436 140735691725152 18446744073709551615 256414925467 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 3506 343 267 70 0 626 0

[startup+0.105169 s]
/proc/loadavg: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=21704 CPUtime=0.09 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 2704 0 0 0 9 0 0 0 25 0 1 0 797779965 22224896 1286 33554432000 4194304 4479436 140735691725152 18446744073709551615 4266129 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 5426 1286 281 70 0 2546 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 21704

[startup+0.20116 s]
/proc/loadavg: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=30016 CPUtime=0.19 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 7123 0 0 0 19 0 0 0 25 0 1 0 797779965 30736384 4640 33554432000 4194304 4479436 140735691725152 18446744073709551615 4339545 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 7504 4640 303 70 0 4624 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 30016

[startup+0.301136 s]
/proc/loadavg: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=30016 CPUtime=0.29 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 7123 0 0 0 29 0 0 0 25 0 1 0 797779965 30736384 4640 33554432000 4194304 4479436 140735691725152 18446744073709551615 4339083 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 7504 4640 303 70 0 4624 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 30016

[startup+0.701065 s]
/proc/loadavg: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=30292 CPUtime=0.69 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 7218 0 0 0 69 0 0 0 25 0 1 0 797779965 31019008 4735 33554432000 4194304 4479436 140735691725152 18446744073709551615 4405014 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 7573 4735 323 70 0 4693 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 30292

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

[startup+0.801046 s]
/proc/loadavg: 2.02 2.03 2.00 3/515 2688
/proc/meminfo: memFree=6860092/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=30292 CPUtime=0.79 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 7219 0 0 0 79 0 0 0 25 0 1 0 797779965 31019008 4736 33554432000 4194304 4479436 140735691725152 18446744073709551615 4314474 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 7573 4736 323 70 0 4693 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 30292

[startup+1.21997 s]
/proc/loadavg: 2.01 2.03 2.00 4/516 2689
/proc/meminfo: memFree=6838184/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=38068 CPUtime=1.21 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 9164 0 0 0 121 0 0 0 25 0 1 0 797779965 38981632 6681 33554432000 4194304 4479436 140735691725152 18446744073709551615 4404813 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 9517 6681 323 70 0 6637 0
Current children cumulated CPU time (s) 1.21
Current children cumulated vsize (KiB) 38068

[startup+1.30095 s]
/proc/loadavg: 2.01 2.03 2.00 4/516 2689
/proc/meminfo: memFree=6838184/32950928 swapFree=67111200/67111528
[pid=2688] ppid=2686 vsize=38068 CPUtime=1.29 cores=0,2,4,6
/proc/2688/stat : 2688 (MPhaseSAT64) R 2686 2688 2345 0 -1 4202496 9164 0 0 0 129 0 0 0 25 0 1 0 797779965 38981632 6681 33554432000 4194304 4479436 140735691725152 18446744073709551615 4326566 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2688/statm: 9517 6681 323 70 0 6637 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 38068

Child status: 20
Real time (s): 1.32819
CPU time (s): 1.3278
CPU user time (s): 1.3178
CPU system time (s): 0.009998
CPU usage (%): 99.9703
Max. virtual memory (cumulated for all children) (KiB): 38068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3178
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= 9171
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= 7
involuntary context switches= 2

runsolver used 0.014997 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node115 at 2011-05-22 16:44:53
IDJOB=3394279
IDBENCH=82463
IDSOLVER=1879
FILE ID=node115/3394279-1306075493
RUNJOBID= node115-1306069998-2363
PBS_JOBID= 13387888
Free space on /tmp= 72968 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/application/jarvisalo/smtqfbv-aigs/smtlib-qfbv-aigs-ext_con_032_008_0256-tseitin.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3394279-1306075493/watcher-3394279-1306075493 -o /tmp/evaluation-result-3394279-1306075493/solver-3394279-1306075493 -C 5000 -W 5100 -M 15500  MPhaseSAT64 HOME/instance-3394279-1306075493.cnf

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

MD5SUM BENCH= ee9a3768141236efcc4a858e8f92a7e9
RANDOM SEED=489985238

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.74
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		: 2666.811
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		: 2666.811
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:       6860388 kB
Buffers:        317500 kB
Cached:        7687648 kB
SwapCached:          0 kB
Active:       20000892 kB
Inactive:      5740936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       6860388 kB
SwapTotal:    67111528 kB
SwapFree:     67111200 kB
Dirty:            5716 kB
Writeback:           0 kB
AnonPages:    17736312 kB
Mapped:          42920 kB
Slab:           202320 kB
PageTables:      75996 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 152107132 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= 72968 MiB
End job on node115 at 2011-05-22 16:44:54