Trace number 3445853

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
MPhaseSAT 2011-02-15UNSAT 3.24351 3.2434

General information on the benchmark

NameSAT05/crafted/sabharwal05/counting/php/unsat/
easier/php-010-008.shuffled-as.sat05-1171.cnf
MD5SUM421970908f111607c59182237109849e
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.096984
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses370
Sum of the clauses size800
Maximum clause length8
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2360
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 510

Solver Data 

3.20/3.24	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
3.20/3.24	c input CNF file=HOME/instance-3445853-1306985436.cnf 
3.20/3.24	c Clause#=370  var#=80  ratio=4 
3.20/3.24	c Simplified clause#=370 
3.20/3.24	c XOR_varElimination deleted var#=0 clauses#=370 
3.20/3.24	c inative var#=0 
3.20/3.24	c free var#=70  
3.20/3.24	c local search off 
3.20/3.24	c 
3.20/3.24	s UNSATISFIABLE
3.20/3.24	c 
3.20/3.24	c  Running time=3.240508

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: 977)

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-3445853-1306985436/watcher-3445853-1306985436 -o /tmp/evaluation-result-3445853-1306985436/solver-3445853-1306985436 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445853-1306985436.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: 1.02 1.02 1.17 2/419 10414
/proc/meminfo: memFree=26282376/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=3036 CPUtime=0 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 388 0 0 0 0 0 0 0 24 0 1 0 810141812 3108864 328 33554432000 134512640 134731564 4290249296 18446744073709551615 3802620 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 759 328 269 54 0 69 0

[startup+0.024859 s]
/proc/loadavg: 1.02 1.02 1.17 2/419 10414
/proc/meminfo: memFree=26282376/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=3168 CPUtime=0.02 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 411 0 0 0 2 0 0 0 24 0 1 0 810141812 3244032 351 33554432000 134512640 134731564 4290249296 18446744073709551615 134667895 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 792 351 269 54 0 102 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3168

[startup+0.100874 s]
/proc/loadavg: 1.02 1.02 1.17 2/419 10414
/proc/meminfo: memFree=26282376/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=3432 CPUtime=0.09 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 476 0 0 0 9 0 0 0 24 0 1 0 810141812 3514368 416 33554432000 134512640 134731564 4290249296 18446744073709551615 134720133 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 858 416 269 54 0 168 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.300803 s]
/proc/loadavg: 1.02 1.02 1.17 2/419 10414
/proc/meminfo: memFree=26282376/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=3696 CPUtime=0.29 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 550 0 0 0 29 0 0 0 25 0 1 0 810141812 3784704 490 33554432000 134512640 134731564 4290249296 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 924 490 269 54 0 234 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3696

[startup+0.700766 s]
/proc/loadavg: 1.02 1.02 1.17 2/419 10414
/proc/meminfo: memFree=26282376/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=4096 CPUtime=0.69 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 642 0 0 0 69 0 0 0 25 0 1 0 810141812 4194304 582 33554432000 134512640 134731564 4290249296 18446744073709551615 134720244 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4096

[startup+1.5006 s]
/proc/loadavg: 1.02 1.02 1.17 3/425 10423
/proc/meminfo: memFree=26272652/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=4096 CPUtime=1.49 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 642 0 0 0 149 0 0 0 25 0 1 0 810141812 4194304 582 33554432000 134512640 134731564 4290249296 18446744073709551615 134634347 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4096

[startup+3.10033 s]
/proc/loadavg: 1.02 1.02 1.17 3/425 10423
/proc/meminfo: memFree=26268888/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=4096 CPUtime=3.09 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 642 0 0 0 309 0 0 0 25 0 1 0 810141812 4194304 582 33554432000 134512640 134731564 4290249296 18446744073709551615 134620734 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4096

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

[startup+3.20031 s]
/proc/loadavg: 1.10 1.04 1.17 3/425 10423
/proc/meminfo: memFree=26267648/32951124 swapFree=44043512/67111528
[pid=10414] ppid=10412 vsize=4096 CPUtime=3.2 cores=0,2,4,6
/proc/10414/stat : 10414 (MPhaseSAT) R 10412 10414 9248 0 -1 4202496 642 0 0 0 320 0 0 0 25 0 1 0 810141812 4194304 582 33554432000 134512640 134731564 4290249296 18446744073709551615 134670221 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/10414/statm: 1024 582 269 54 0 334 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 4096

Child status: 20
Real time (s): 3.2434
CPU time (s): 3.24351
CPU user time (s): 3.24151
CPU system time (s): 0.001999
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 4096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.24151
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 650
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= 13
involuntary context switches= 11

runsolver used 0.019996 second user time and 0.038994 second system time

The end

Launcher Data 

Begin job on node134 at 2011-06-02 05:30:36
IDJOB=3445853
IDBENCH=85447
IDSOLVER=1941
FILE ID=node134/3445853-1306985436
RUNJOBID= node134-1306985436-10402
PBS_JOBID= 13497680
Free space on /tmp= 73716 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT05/crafted/sabharwal05/counting/php/unsat/easier/php-010-008.shuffled-as.sat05-1171.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445853-1306985436/watcher-3445853-1306985436 -o /tmp/evaluation-result-3445853-1306985436/solver-3445853-1306985436 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445853-1306985436.cnf

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

MD5SUM BENCH= 421970908f111607c59182237109849e
RANDOM SEED=1180482052

node134.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		: 2666.831
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		: 2666.831
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	: 5332.67
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		: 2666.831
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		: 2666.831
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	: 7186.06
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		: 2666.831
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	: 5332.80
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      26282664 kB
Buffers:        194828 kB
Cached:         363888 kB
SwapCached:       9540 kB
Active:        5961276 kB
Inactive:       419252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      26282664 kB
SwapTotal:    67111528 kB
SwapFree:     44043512 kB
Dirty:              24 kB
Writeback:           0 kB
AnonPages:     5820068 kB
Mapped:          20812 kB
Slab:           131824 kB
PageTables:      89312 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 110745552 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73712 MiB
End job on node134 at 2011-06-02 05:30:40