Trace number 3094589

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 2011-02-15SAT 1.68674 1.68832

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v90-c8010-S224440242-006.SATISFIABLE.cnf
MD5SUM85fc90ad26a12d6925b177503ad87394
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.074988
Satisfiable
(Un)Satisfiability was proved
Number of variables90
Number of clauses8010
Sum of the clauses size56070
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 58010

Solver Data 

1.59/1.68	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.59/1.68	c input CNF file=HOME/instance-3094589-1301759823.cnf 
1.59/1.68	c Clause#=8010  var#=90  ratio=89 
1.59/1.68	c Simplified clause#=8010 
1.59/1.68	c XOR_varElimination deleted var#=0 clauses#=8010 
1.59/1.68	c inative var#=0 
1.59/1.68	c free var#=90  
1.59/1.68	c local search on 
1.59/1.68	c A solution found by local search 
1.59/1.68	c unfixed var#=0 var#=90 
1.59/1.68	c verified 
1.59/1.68	c 
1.59/1.68	s SATISFIABLE
1.59/1.68	v 1 2 3 4 5 6 -7 8 9 10 -11 -12 -13 -14 15 -16 -17 -18 19 -20 21 22 23 -24 -25 -26 -27 28 29 -30 31 -32 33 34 -35 36 -37 -38 -39 40 -41 -42 43 -44 45 -46 -47 48 -49 -50 -51 -52 53 -54 55 56 57 58 59 60 -61 62 -63 -64 -65 66 -67 -68 69 -70 71 72 -73 74 75 -76 77 -78 -79 -80 -81 -82 -83 84 85 -86 87 -88 -89 90 
1.59/1.68	v 0
1.59/1.68	c 
1.59/1.68	c  Running time=1.685744

Verifier Data 

OK

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-3094589-1301759823/watcher-3094589-1301759823 -o /tmp/evaluation-result-3094589-1301759823/solver-3094589-1301759823 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094589-1301759823.cnf 

running on 2 cores: 4,6

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: 3.98 4.00 3.96 5/193 22307
/proc/meminfo: memFree=20540700/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=3228 CPUtime=0 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 333 0 0 0 0 0 0 0 25 0 1 0 287580438 3305472 272 33554432000 134512640 134731564 4287762720 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 807 272 225 54 0 117 0

[startup+0.10303 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22307
/proc/meminfo: memFree=20540700/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=4656 CPUtime=0.1 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 832 0 0 0 10 0 0 0 25 0 1 0 287580438 4767744 715 33554432000 134512640 134731564 4287762720 18446744073709551615 134667218 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1164 715 268 54 0 474 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4656

[startup+0.201011 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22307
/proc/meminfo: memFree=20540700/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=4788 CPUtime=0.19 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 877 0 0 0 19 0 0 0 25 0 1 0 287580438 4902912 760 33554432000 134512640 134731564 4287762720 18446744073709551615 2092834 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1197 760 268 54 0 507 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4788

[startup+0.300982 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22307
/proc/meminfo: memFree=20540700/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=4920 CPUtime=0.29 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 903 0 0 0 29 0 0 0 25 0 1 0 287580438 5038080 786 33554432000 134512640 134731564 4287762720 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1230 786 268 54 0 540 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4920

[startup+0.700898 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22307
/proc/meminfo: memFree=20540700/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=5320 CPUtime=0.69 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 997 0 0 0 69 0 0 0 25 0 1 0 287580438 5447680 880 33554432000 134512640 134731564 4287762720 18446744073709551615 134659306 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1330 880 268 54 0 640 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5320

[startup+1.50077 s]
/proc/loadavg: 3.98 4.00 3.96 5/194 22308
/proc/meminfo: memFree=20537476/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=5744 CPUtime=1.49 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 1115 0 0 0 149 0 0 0 25 0 1 0 287580438 5881856 998 33554432000 134512640 134731564 4287762720 18446744073709551615 134605260 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1436 998 271 54 0 746 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5744

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

[startup+1.60075 s]
/proc/loadavg: 3.98 4.00 3.96 5/194 22308
/proc/meminfo: memFree=20537476/32951124 swapFree=67111528/67111528
[pid=22307] ppid=22305 vsize=5744 CPUtime=1.59 cores=4,6
/proc/22307/stat : 22307 (MPhaseSAT) R 22305 22307 21142 0 -1 4202496 1115 0 0 0 159 0 0 0 25 0 1 0 287580438 5881856 998 33554432000 134512640 134731564 4287762720 18446744073709551615 134605256 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22307/statm: 1436 998 271 54 0 746 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 5744

Child status: 10
Real time (s): 1.68832
CPU time (s): 1.68674
CPU user time (s): 1.68674
CPU system time (s): 0
CPU usage (%): 99.9066
Max. virtual memory (cumulated for all children) (KiB): 5744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.68674
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1133
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= 2

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 17:57:03
IDJOB=3094589
IDBENCH=83071
IDSOLVER=1520
FILE ID=node132/3094589-1301759823
RUNJOBID= node132-1301757100-21161
PBS_JOBID= 12841076
Free space on /tmp= 72388 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k7-r89-v90-c8010-S224440242-006.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094589-1301759823/watcher-3094589-1301759823 -o /tmp/evaluation-result-3094589-1301759823/solver-3094589-1301759823 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094589-1301759823.cnf

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

MD5SUM BENCH= 85fc90ad26a12d6925b177503ad87394
RANDOM SEED=898840242

node132.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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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		: 2666.833
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	: 5332.67
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		: 2666.833
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20540732 kB
Buffers:        358276 kB
Cached:       11715280 kB
SwapCached:          0 kB
Active:        7316960 kB
Inactive:      4840148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20540732 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             892 kB
Writeback:           0 kB
AnonPages:       82860 kB
Mapped:          16916 kB
Slab:           191836 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   267856 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= 72388 MiB
End job on node132 at 2011-04-02 17:57:04