Trace number 3265528

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_M 2011-02-16UNSAT 0.092985 0.096039

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 benchmark0.083986
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 

0.03/0.09	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.03/0.09	c input CNF file=HOME/instance-3265528-1303575417.cnf 
0.03/0.09	c Clause#=672  var#=135  ratio=4 
0.03/0.09	c Simplified clause#=670 
0.03/0.09	c XOR_varElimination deleted var#=0 clauses#=670 
0.03/0.09	c before shortening average=14.870968, XOR clauses#=62 
0.03/0.09	c after shortening average=12.354839 XOR clauses#=62 
0.03/0.09	c inative var#=0 
0.03/0.09	c free var#=134  
0.03/0.09	c local search off 
0.03/0.09	c 
0.03/0.09	s UNSATISFIABLE
0.03/0.09	c 
0.03/0.09	c  Running time=0.091986

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: 935)

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-3265528-1303575417/watcher-3265528-1303575417 -o /tmp/evaluation-result-3265528-1303575417/solver-3265528-1303575417 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3265528-1303575417.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: 3.72 3.93 3.85 4/178 6821
/proc/meminfo: memFree=16255484/32951124 swapFree=67111528/67111528
[pid=6821] ppid=6819 vsize=3148 CPUtime=0 cores=0,2
/proc/6821/stat : 6821 (MPhaseSAT_M) R 6819 6821 5803 0 -1 4202496 371 0 0 0 0 0 0 0 22 0 1 0 469142044 3223552 311 33554432000 134512640 134829744 4290090976 18446744073709551615 134560240 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/6821/statm: 787 311 248 78 0 73 0

[startup+0.035245 s]
/proc/loadavg: 3.72 3.93 3.85 4/178 6821
/proc/meminfo: memFree=16255484/32951124 swapFree=67111528/67111528
[pid=6821] ppid=6819 vsize=3540 CPUtime=0.03 cores=0,2
/proc/6821/stat : 6821 (MPhaseSAT_M) R 6819 6821 5803 0 -1 4202496 485 0 0 0 3 0 0 0 22 0 1 0 469142044 3624960 423 33554432000 134512640 134829744 4290090976 18446744073709551615 134722783 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/6821/statm: 885 423 281 78 0 171 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3540

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

[startup+0.035245 s]
/proc/loadavg: 3.72 3.93 3.85 4/178 6821
/proc/meminfo: memFree=16255484/32951124 swapFree=67111528/67111528
[pid=6821] ppid=6819 vsize=3540 CPUtime=0.03 cores=0,2
/proc/6821/stat : 6821 (MPhaseSAT_M) R 6819 6821 5803 0 -1 4202496 485 0 0 0 3 0 0 0 22 0 1 0 469142044 3624960 423 33554432000 134512640 134829744 4290090976 18446744073709551615 134722783 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/6821/statm: 885 423 281 78 0 171 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3540

Child status: 20
Real time (s): 0.096039
CPU time (s): 0.092985
CPU user time (s): 0.092985
CPU system time (s): 0
CPU usage (%): 96.82
Max. virtual memory (cumulated for all children) (KiB): 3540

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.092985
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= 517
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= 0

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node106 at 2011-04-23 18:16:57
IDJOB=3265528
IDBENCH=85780
IDSOLVER=1522
FILE ID=node106/3265528-1303575417
RUNJOBID= node106-1303575416-6801
PBS_JOBID= 13150305
Free space on /tmp= 71736 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT05/crafted/markstrom05/eulcbip/eulcbip-7-UNSAT.shuffled-as.sat05-3936.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265528-1303575417/watcher-3265528-1303575417 -o /tmp/evaluation-result-3265528-1303575417/solver-3265528-1303575417 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3265528-1303575417.cnf

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

MD5SUM BENCH= 151ccdb2c52c7f525fde5dca388bb6e6
RANDOM SEED=1216988505

node106.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	: 5226.20
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	: 5332.75
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	: 5332.82
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	: 5332.74
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16255748 kB
Buffers:       1983056 kB
Cached:       14080116 kB
SwapCached:          0 kB
Active:        9618192 kB
Inactive:      6516416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16255748 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           11664 kB
Writeback:           0 kB
AnonPages:       71040 kB
Mapped:          14480 kB
Slab:           497092 kB
PageTables:       5196 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   196532 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= 71728 MiB
End job on node106 at 2011-04-23 18:16:57