Trace number 3094457

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 1.2868 1.2874

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v60-c5340-S1510638717-051.SATISFIABLE.cnf
MD5SUMe8248df66827581bc842de4513557985
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05799
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
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 55340

Solver Data 

1.20/1.28	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.20/1.28	c input CNF file=HOME/instance-3094457-1301757100.cnf 
1.20/1.28	c Clause#=5340  var#=60  ratio=89 
1.20/1.28	c Simplified clause#=5340 
1.20/1.28	c XOR_varElimination deleted var#=0 clauses#=5340 
1.20/1.28	c inative var#=0 
1.20/1.28	c free var#=60  
1.20/1.28	c local search on 
1.20/1.28	c A solution found by local search 
1.20/1.28	c unfixed var#=0 var#=60 
1.20/1.28	c verified 
1.20/1.28	c 
1.20/1.28	s SATISFIABLE
1.20/1.28	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 
1.20/1.28	v 0
1.20/1.28	c 
1.20/1.28	c  Running time=1.284805

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-3094457-1301757100/watcher-3094457-1301757100 -o /tmp/evaluation-result-3094457-1301757100/solver-3094457-1301757100 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094457-1301757100.cnf 

running on 2 cores: 0,2

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: 3.68 3.90 3.66 4/183 21187
/proc/meminfo: memFree=20561320/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=3184 CPUtime=0 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 339 0 0 0 0 0 0 0 25 0 1 0 287308156 3260416 278 33554432000 134512640 134731564 4294331280 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 796 278 225 54 0 106 0

[startup+0.0739129 s]
/proc/loadavg: 3.68 3.90 3.66 4/183 21187
/proc/meminfo: memFree=20561320/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4132 CPUtime=0.07 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 754 0 0 0 7 0 0 0 25 0 1 0 287308156 4231168 577 33554432000 134512640 134731564 4294331280 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1033 577 268 54 0 343 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4132

[startup+0.100908 s]
/proc/loadavg: 3.68 3.90 3.66 4/183 21187
/proc/meminfo: memFree=20561320/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4132 CPUtime=0.1 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 772 0 0 0 10 0 0 0 25 0 1 0 287308156 4231168 595 33554432000 134512640 134731564 4294331280 18446744073709551615 2092913 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1033 595 268 54 0 343 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4132

[startup+0.300871 s]
/proc/loadavg: 3.68 3.90 3.66 4/183 21187
/proc/meminfo: memFree=20561320/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4528 CPUtime=0.3 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 846 0 0 0 30 0 0 0 25 0 1 0 287308156 4636672 669 33554432000 134512640 134731564 4294331280 18446744073709551615 134659514 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1132 669 268 54 0 442 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 4528

[startup+0.700799 s]
/proc/loadavg: 3.68 3.90 3.66 4/183 21187
/proc/meminfo: memFree=20561320/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4792 CPUtime=0.7 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 915 0 0 0 70 0 0 0 25 0 1 0 287308156 4907008 738 33554432000 134512640 134731564 4294331280 18446744073709551615 134659306 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1198 738 268 54 0 508 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 4792

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

[startup+1.10677 s]
/proc/loadavg: 3.68 3.90 3.66 5/192 21203
/proc/meminfo: memFree=20553972/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4932 CPUtime=1.1 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 976 0 0 0 110 0 0 0 25 0 1 0 287308156 5050368 799 33554432000 134512640 134731564 4294331280 18446744073709551615 134606297 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1233 799 271 54 0 543 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4932

[startup+1.2007 s]
/proc/loadavg: 3.68 3.90 3.66 5/192 21203
/proc/meminfo: memFree=20553972/32951124 swapFree=67111528/67111528
[pid=21187] ppid=21184 vsize=4932 CPUtime=1.2 cores=0,2
/proc/21187/stat : 21187 (MPhaseSAT) R 21184 21187 21142 0 -1 4202496 976 0 0 0 120 0 0 0 25 0 1 0 287308156 5050368 799 33554432000 134512640 134731564 4294331280 18446744073709551615 134605665 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/21187/statm: 1233 799 271 54 0 543 0
Current children cumulated CPU time (s) 1.2
Current children cumulated vsize (KiB) 4932

Child status: 10
Real time (s): 1.2874
CPU time (s): 1.2868
CPU user time (s): 1.2868
CPU system time (s): 0
CPU usage (%): 99.9534
Max. virtual memory (cumulated for all children) (KiB): 4932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2868
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= 986
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= 17
involuntary context switches= 15

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 17:11:40
IDJOB=3094457
IDBENCH=82939
IDSOLVER=1520
FILE ID=node132/3094457-1301757100
RUNJOBID= node132-1301757100-21160
PBS_JOBID= 12841076
Free space on /tmp= 72388 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k7-r89-v60-c5340-S1510638717-051.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094457-1301757100/watcher-3094457-1301757100 -o /tmp/evaluation-result-3094457-1301757100/solver-3094457-1301757100 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094457-1301757100.cnf

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

MD5SUM BENCH= e8248df66827581bc842de4513557985
RANDOM SEED=1078102295

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:      20561492 kB
Buffers:        357596 kB
Cached:       11713600 kB
SwapCached:          0 kB
Active:        7294052 kB
Inactive:      4840288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20561492 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             692 kB
Writeback:           0 kB
AnonPages:       62580 kB
Mapped:          15120 kB
Slab:           191512 kB
PageTables:       5536 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   202224 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 17:11:41