Trace number 3094359

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 8.18175 8.18277

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S534787376-095.UNKNOWN.cnf
MD5SUM30a6e61471a22008cda0ff7e2d23efa4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.251961
Satisfiable
(Un)Satisfiability was proved
Number of variables250
Number of clauses1065
Sum of the clauses size3195
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31065
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

8.09/8.18	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
8.09/8.18	c input CNF file=HOME/instance-3094359-1301753857.cnf 
8.09/8.18	c Clause#=1065  var#=250  ratio=4 
8.09/8.18	c Simplified clause#=1065 
8.09/8.18	c XOR_varElimination deleted var#=1 clauses#=1059 
8.09/8.18	c inative var#=0 
8.09/8.18	c free var#=240  
8.09/8.18	c local search off 
8.09/8.18	c height=6 age=35 
8.09/8.18	c 
8.09/8.18	s UNSATISFIABLE
8.09/8.18	c 
8.09/8.18	c  Running time=8.180756

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3094359-1301753857/watcher-3094359-1301753857 -o /tmp/evaluation-result-3094359-1301753857/solver-3094359-1301753857 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094359-1301753857.cnf 

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: 3.95 3.98 3.94 4/189 23227
/proc/meminfo: memFree=23754600/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=3084 CPUtime=0 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 361 0 0 0 0 0 0 0 25 0 1 0 286983439 3158016 299 33554432000 134512640 134731564 4287388336 18446744073709551615 134580509 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 771 299 238 54 0 81 0

[startup+0.0898901 s]
/proc/loadavg: 3.95 3.98 3.94 4/189 23227
/proc/meminfo: memFree=23754600/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=3472 CPUtime=0.08 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 470 0 0 0 8 0 0 0 25 0 1 0 286983439 3555328 408 33554432000 134512640 134731564 4287388336 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 868 408 269 54 0 178 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3472

[startup+0.100891 s]
/proc/loadavg: 3.95 3.98 3.94 4/189 23227
/proc/meminfo: memFree=23754600/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=3472 CPUtime=0.09 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 480 0 0 0 9 0 0 0 25 0 1 0 286983439 3555328 418 33554432000 134512640 134731564 4287388336 18446744073709551615 134634461 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 868 418 269 54 0 178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3472

[startup+0.300865 s]
/proc/loadavg: 3.95 3.98 3.94 4/189 23227
/proc/meminfo: memFree=23754600/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=3736 CPUtime=0.29 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 533 0 0 0 29 0 0 0 25 0 1 0 286983439 3825664 471 33554432000 134512640 134731564 4287388336 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 934 471 269 54 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3736

[startup+0.700779 s]
/proc/loadavg: 3.95 3.98 3.94 4/189 23227
/proc/meminfo: memFree=23754600/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=3868 CPUtime=0.69 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 588 0 0 0 69 0 0 0 25 0 1 0 286983439 3960832 526 33554432000 134512640 134731564 4287388336 18446744073709551615 134668876 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 967 526 269 54 0 277 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3868

[startup+1.50064 s]
/proc/loadavg: 3.95 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23753260/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=1.49 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 618 0 0 0 149 0 0 0 25 0 1 0 286983439 4096000 556 33554432000 134512640 134731564 4287388336 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 556 269 54 0 310 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4000

[startup+3.10036 s]
/proc/loadavg: 3.95 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23752516/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=3.09 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 624 0 0 0 309 0 0 0 25 0 1 0 286983439 4096000 562 33554432000 134512640 134731564 4287388336 18446744073709551615 134659961 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 562 269 54 0 310 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4000

[startup+6.30077 s]
/proc/loadavg: 3.96 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23752412/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=6.29 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 624 0 0 0 629 0 0 0 25 0 1 0 286983439 4096000 562 33554432000 134512640 134731564 4287388336 18446744073709551615 134659291 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 562 269 54 0 310 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4000

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

[startup+7.10064 s]
/proc/loadavg: 3.96 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23752288/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=7.09 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 625 0 0 0 709 0 0 0 25 0 1 0 286983439 4096000 563 33554432000 134512640 134731564 4287388336 18446744073709551615 134620745 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 563 270 54 0 310 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 4000

[startup+7.90048 s]
/proc/loadavg: 3.96 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23752404/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=7.89 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 625 0 0 0 789 0 0 0 25 0 1 0 286983439 4096000 563 33554432000 134512640 134731564 4287388336 18446744073709551615 134723228 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 563 270 54 0 310 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 4000

[startup+8.10044 s]
/proc/loadavg: 3.96 3.98 3.94 6/190 23228
/proc/meminfo: memFree=23752404/32951124 swapFree=67111528/67111528
[pid=23227] ppid=23225 vsize=4000 CPUtime=8.09 cores=5,7
/proc/23227/stat : 23227 (MPhaseSAT) R 23225 23227 22502 0 -1 4202496 625 0 0 0 809 0 0 0 25 0 1 0 286983439 4096000 563 33554432000 134512640 134731564 4287388336 18446744073709551615 134655210 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/23227/statm: 1000 563 270 54 0 310 0
Current children cumulated CPU time (s) 8.09
Current children cumulated vsize (KiB) 4000

Child status: 20
Real time (s): 8.18277
CPU time (s): 8.18175
CPU user time (s): 8.17976
CPU system time (s): 0.001999
CPU usage (%): 99.9876
Max. virtual memory (cumulated for all children) (KiB): 4000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.17976
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= 635
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= 6
involuntary context switches= 18

runsolver used 0.011998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node137 at 2011-04-02 16:17:37
IDJOB=3094359
IDBENCH=82841
IDSOLVER=1520
FILE ID=node137/3094359-1301753857
RUNJOBID= node137-1301749910-22523
PBS_JOBID= 12841037
Free space on /tmp= 72408 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S534787376-095.UNKNOWN.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094359-1301753857/watcher-3094359-1301753857 -o /tmp/evaluation-result-3094359-1301753857/solver-3094359-1301753857 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094359-1301753857.cnf

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

MD5SUM BENCH= 30a6e61471a22008cda0ff7e2d23efa4
RANDOM SEED=1314283660

node137.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		: 2666.844
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	: 5333.68
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		: 2666.844
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		: 2666.844
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	: 5332.74
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		: 2666.844
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	: 5332.74
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.83
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		: 2666.844
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:     32951124 kB
MemFree:      23754632 kB
Buffers:        320928 kB
Cached:        8554688 kB
SwapCached:          0 kB
Active:        5133552 kB
Inactive:      3820436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23754632 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             276 kB
Writeback:           0 kB
AnonPages:       78448 kB
Mapped:          16908 kB
Slab:           179084 kB
PageTables:       5252 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   263296 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= 72408 MiB
End job on node137 at 2011-04-02 16:17:45