Trace number 3094849

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
MPhaseSAT64 2011-03-03UNSAT 51.3492 51.3541

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
MD5SUM63c27e328029fd4b3a3f3ab8a494055c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.147976
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses1065
Sum of the clauses size5325
Maximum clause length5
Minimum clause length5
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 51065
Number of clauses of size over 50

Solver Data 

51.29/51.35	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
51.29/51.35	c input CNF file=HOME/instance-3094849-1301752616.cnf 
51.29/51.35	c Clause#=1065  var#=50  ratio=21 
51.29/51.35	c Simplified clause#=1065 
51.29/51.35	c XOR_varElimination deleted var#=0 clauses#=1065 
51.29/51.35	c inative var#=0 
51.29/51.35	c free var#=50  
51.29/51.35	c local search on 
51.29/51.35	c height=7 age=48.399800 
51.29/51.35	c hybrid solving 
51.29/51.35	c 
51.29/51.35	s UNSATISFIABLE
51.29/51.35	c 
51.29/51.35	c  Running time=51.349193

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-3094849-1301752616/watcher-3094849-1301752616 -o /tmp/evaluation-result-3094849-1301752616/solver-3094849-1301752616 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094849-1301752616.cnf 

running on 2 cores: 1,3

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: 4.00 4.00 3.92 4/189 14028
/proc/meminfo: memFree=22464256/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=3116 CPUtime=0 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 359 0 0 0 0 0 0 0 25 0 1 0 267677190 3190784 298 33554432000 134512640 134761588 4287904288 18446744073709551615 134580567 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 779 298 237 61 0 82 0

[startup+0.077948 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 14028
/proc/meminfo: memFree=22464256/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=3680 CPUtime=0.07 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 532 0 0 0 7 0 0 0 25 0 1 0 267677190 3768320 471 33554432000 134512640 134761588 4287904288 18446744073709551615 134747225 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 920 471 274 61 0 223 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3680

[startup+0.100946 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 14028
/proc/meminfo: memFree=22464256/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=3936 CPUtime=0.09 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 596 0 0 0 9 0 0 0 25 0 1 0 267677190 4030464 535 33554432000 134512640 134761588 4287904288 18446744073709551615 134748129 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 984 535 274 61 0 287 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3936

[startup+0.300907 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 14028
/proc/meminfo: memFree=22464256/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4900 CPUtime=0.29 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 837 0 0 0 29 0 0 0 25 0 1 0 267677190 5017600 776 33554432000 134512640 134761588 4287904288 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1225 776 274 61 0 528 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4900

[startup+0.700828 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 14028
/proc/meminfo: memFree=22464256/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4904 CPUtime=0.69 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 918 0 0 0 69 0 0 0 25 0 1 0 267677190 5021696 793 33554432000 134512640 134761588 4287904288 18446744073709551615 134748606 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1226 793 274 61 0 529 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4904

[startup+1.50067 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14029
/proc/meminfo: memFree=22457708/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4904 CPUtime=1.49 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 921 0 0 0 149 0 0 0 25 0 1 0 267677190 5021696 796 33554432000 134512640 134761588 4287904288 18446744073709551615 134605388 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1226 796 277 61 0 529 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4904

[startup+3.10035 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14029
/proc/meminfo: memFree=22457336/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4904 CPUtime=3.09 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 921 0 0 0 309 0 0 0 25 0 1 0 267677190 5021696 796 33554432000 134512640 134761588 4287904288 18446744073709551615 134604859 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1226 796 277 61 0 529 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4904

[startup+6.30073 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14029
/proc/meminfo: memFree=22457232/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4904 CPUtime=6.29 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 921 0 0 0 629 0 0 0 25 0 1 0 267677190 5021696 796 33554432000 134512640 134761588 4287904288 18446744073709551615 134605967 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1226 796 277 61 0 529 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4904

[startup+12.7004 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14029
/proc/meminfo: memFree=22456132/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=4904 CPUtime=12.69 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 921 0 0 0 1269 0 0 0 25 0 1 0 267677190 5021696 796 33554432000 134512640 134761588 4287904288 18446744073709551615 134605305 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1226 796 277 61 0 529 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4904

[startup+25.5009 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14029
/proc/meminfo: memFree=22454528/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=6448 CPUtime=25.49 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 1323 0 0 0 2549 0 0 0 25 0 1 0 267677190 6602752 1150 33554432000 134512640 134761588 4287904288 18446744073709551615 134748321 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1612 1150 277 61 0 915 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 6448

[startup+51.1008 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14030
/proc/meminfo: memFree=22453244/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=6080 CPUtime=51.09 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 1783 0 0 0 5109 0 0 0 25 0 1 0 267677190 6225920 909 33554432000 134512640 134761588 4287904288 18446744073709551615 134617156 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1520 909 286 61 0 823 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 6080

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

[startup+51.3008 s]
/proc/loadavg: 4.00 4.00 3.92 5/190 14030
/proc/meminfo: memFree=22453244/32951124 swapFree=67111528/67111528
[pid=14028] ppid=14026 vsize=6080 CPUtime=51.29 cores=1,3
/proc/14028/stat : 14028 (MPhaseSAT64) R 14026 14028 13645 0 -1 4202496 1919 0 0 0 5129 0 0 0 25 0 1 0 267677190 6225920 913 33554432000 134512640 134761588 4287904288 18446744073709551615 134636136 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14028/statm: 1520 913 286 61 0 823 0
Current children cumulated CPU time (s) 51.29
Current children cumulated vsize (KiB) 6080

Child status: 20
Real time (s): 51.3541
CPU time (s): 51.3492
CPU user time (s): 51.3442
CPU system time (s): 0.004999
CPU usage (%): 99.9905
Max. virtual memory (cumulated for all children) (KiB): 6448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.3442
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1963
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= 8
involuntary context switches= 175

runsolver used 0.092985 second user time and 0.143978 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-02 15:56:56
IDJOB=3094849
IDBENCH=82731
IDSOLVER=1521
FILE ID=node143/3094849-1301752616
RUNJOBID= node143-1301750011-13665
PBS_JOBID= 12841038
Free space on /tmp= 72040 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094849-1301752616/watcher-3094849-1301752616 -o /tmp/evaluation-result-3094849-1301752616/solver-3094849-1301752616 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094849-1301752616.cnf

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

MD5SUM BENCH= 63c27e328029fd4b3a3f3ab8a494055c
RANDOM SEED=1439558796

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5226.15
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
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		: 2666.846
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:      22464288 kB
Buffers:        352568 kB
Cached:        9786796 kB
SwapCached:          0 kB
Active:        6977672 kB
Inactive:      3249372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22464288 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1180 kB
Writeback:           0 kB
AnonPages:       87164 kB
Mapped:          16524 kB
Slab:           195232 kB
PageTables:       5280 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   271092 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= 72040 MiB
End job on node143 at 2011-04-02 15:57:47