Trace number 3445862

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 0.082986 0.0853651

General information on the benchmark

NameSAT05/crafted/markstrom05/eulcbip/
eulcbip-7-UNSAT.shuffled-as.sat05-3936.cnf
MD5SUM151ccdb2c52c7f525fde5dca388bb6e6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.082986
Satisfiable
(Un)Satisfiability was proved
Number of variables135
Number of clauses672
Sum of the clauses size2684
Maximum clause length4
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 30
Number of clauses of size 4670
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.06/0.08	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.06/0.08	c input CNF file=HOME/instance-3445862-1306985755.cnf 
0.06/0.08	c Clause#=672  var#=135  ratio=4 
0.06/0.08	c Simplified clause#=670 
0.06/0.08	c XOR_varElimination deleted var#=0 clauses#=670 
0.06/0.08	c before shortening average=14.870968, XOR clauses#=62 
0.06/0.08	c after shortening average=12.354839 XOR clauses#=62 
0.06/0.08	c inative var#=0 
0.06/0.08	c free var#=134  
0.06/0.08	c local search off 
0.06/0.08	c 
0.06/0.08	s UNSATISFIABLE
0.06/0.08	c 
0.06/0.08	c  Running time=0.081987

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-3445862-1306985755/watcher-3445862-1306985755 -o /tmp/evaluation-result-3445862-1306985755/solver-3445862-1306985755 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445862-1306985755.cnf 

running on 4 cores: 1,3,5,7

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: 2.16 2.04 1.98 2/434 18226
/proc/meminfo: memFree=12658700/32951132 swapFree=67093840/67111528
[pid=18226] ppid=18224 vsize=3308 CPUtime=0 cores=1,3,5,7
/proc/18226/stat : 18226 (MPhaseSAT) R 18224 18226 16679 0 -1 4202496 454 0 0 0 0 0 0 0 24 0 1 0 810175181 3387392 393 33554432000 134512640 134731564 4291277696 18446744073709551615 134690976 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18226/statm: 827 393 271 54 0 137 0

[startup+0.072747 s]
/proc/loadavg: 2.16 2.04 1.98 2/434 18226
/proc/meminfo: memFree=12658700/32951132 swapFree=67093840/67111528
[pid=18226] ppid=18224 vsize=3572 CPUtime=0.06 cores=1,3,5,7
/proc/18226/stat : 18226 (MPhaseSAT) R 18224 18226 16679 0 -1 4202496 507 0 0 0 6 0 0 0 24 0 1 0 810175181 3657728 446 33554432000 134512640 134731564 4291277696 18446744073709551615 134669102 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18226/statm: 893 446 279 54 0 203 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3572

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

[startup+0.072747 s]
/proc/loadavg: 2.16 2.04 1.98 2/434 18226
/proc/meminfo: memFree=12658700/32951132 swapFree=67093840/67111528
[pid=18226] ppid=18224 vsize=3572 CPUtime=0.06 cores=1,3,5,7
/proc/18226/stat : 18226 (MPhaseSAT) R 18224 18226 16679 0 -1 4202496 507 0 0 0 6 0 0 0 24 0 1 0 810175181 3657728 446 33554432000 134512640 134731564 4291277696 18446744073709551615 134669102 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18226/statm: 893 446 279 54 0 203 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3572

Child status: 20
Real time (s): 0.0853651
CPU time (s): 0.082986
CPU user time (s): 0.080987
CPU system time (s): 0.001999
CPU usage (%): 97.213
Max. virtual memory (cumulated for all children) (KiB): 3572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.080987
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= 512
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= 12
involuntary context switches= 1

runsolver used 0.007998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node131 at 2011-06-02 05:35:55
IDJOB=3445862
IDBENCH=85780
IDSOLVER=1941
FILE ID=node131/3445862-1306985755
RUNJOBID= node131-1306982161-18045
PBS_JOBID= 13497651
Free space on /tmp= 73888 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT05/crafted/markstrom05/eulcbip/eulcbip-7-UNSAT.shuffled-as.sat05-3936.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445862-1306985755/watcher-3445862-1306985755 -o /tmp/evaluation-result-3445862-1306985755/solver-3445862-1306985755 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445862-1306985755.cnf

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

MD5SUM BENCH= 151ccdb2c52c7f525fde5dca388bb6e6
RANDOM SEED=205625943

node131.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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951132 kB
MemFree:      12658980 kB
Buffers:        322456 kB
Cached:        5543844 kB
SwapCached:        948 kB
Active:       15837500 kB
Inactive:      4150960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      12658980 kB
SwapTotal:    67111528 kB
SwapFree:     67093840 kB
Dirty:              16 kB
Writeback:           4 kB
AnonPages:    14120660 kB
Mapped:          38740 kB
Slab:           183556 kB
PageTables:      55760 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 95358280 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73888 MiB
End job on node131 at 2011-06-02 05:35:56