Trace number 3291479

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 2011-02-15? 2.65559 2.6567

General information on the benchmark

NameSAT03/industrial/li/li-test4/
li-test4-100.shuffled-as.sat03-370.cnf
MD5SUM5e5606ae7367b9272c60adc115594912
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables36809
Number of clauses142491
Sum of the clauses size559708
Maximum clause length172
Minimum clause length1
Number of clauses of size 114
Number of clauses of size 224558
Number of clauses of size 367458
Number of clauses of size 449000
Number of clauses of size 51
Number of clauses of size over 51460

Solver Data 

2.59/2.65	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
2.59/2.65	c input CNF file=HOME/instance-3291479-1303784736.cnf 
2.59/2.65	c Clause#=142491  var#=36809  ratio=3 
2.59/2.65	c phase 1 
2.59/2.65	c Simplified clause#=149462 
2.59/2.65	c XOR_varElimination deleted var#=8 clauses#=141661 
2.59/2.65	c before shortening average=14.417732, XOR clauses#=9305 
2.59/2.65	c 
2.59/2.65	c 
2.59/2.65	c SEGMENTATION FAULT 
2.59/2.65	c 
2.59/2.65	s UNKNOWN
2.59/2.65	c

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

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-3291479-1303784736/watcher-3291479-1303784736 -o /tmp/evaluation-result-3291479-1303784736/solver-3291479-1303784736 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3291479-1303784736.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: 1.29 2.03 2.87 4/189 25913
/proc/meminfo: memFree=16779592/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=5272 CPUtime=0 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 333 0 0 0 0 0 0 0 25 0 1 0 470889268 5398528 274 33554432000 134512640 134731564 4289439744 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 1318 274 225 54 0 628 0

[startup+0.101624 s]
/proc/loadavg: 1.29 2.03 2.87 4/189 25913
/proc/meminfo: memFree=16779592/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=5272 CPUtime=0.1 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 800 0 0 0 10 0 0 0 25 0 1 0 470889268 5398528 741 33554432000 134512640 134731564 4289439744 18446744073709551615 134531593 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 1318 741 225 54 0 628 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5272

[startup+0.200605 s]
/proc/loadavg: 1.29 2.03 2.87 4/189 25913
/proc/meminfo: memFree=16779592/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=9300 CPUtime=0.19 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 3544 0 0 0 19 0 0 0 25 0 1 0 470889268 9523200 1829 33554432000 134512640 134731564 4289439744 18446744073709551615 134559200 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 2325 1829 260 54 0 1635 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 9300

[startup+0.300585 s]
/proc/loadavg: 1.29 2.03 2.87 4/189 25913
/proc/meminfo: memFree=16779592/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=6264 CPUtime=0.29 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 8673 0 0 0 29 0 0 0 25 0 1 0 470889268 6414336 1071 33554432000 134512640 134731564 4289439744 18446744073709551615 134578155 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 1566 1071 260 54 0 876 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6264

[startup+0.700512 s]
/proc/loadavg: 1.29 2.03 2.87 4/189 25913
/proc/meminfo: memFree=16779592/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=31988 CPUtime=0.69 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 16463 0 0 0 68 1 0 0 25 0 1 0 470889268 32755712 7143 33554432000 134512640 134731564 4289439744 18446744073709551615 3057507 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 7997 7145 281 54 0 7307 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 31988

[startup+1.50037 s]
/proc/loadavg: 1.29 2.03 2.87 5/190 25914
/proc/meminfo: memFree=16750824/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=32020 CPUtime=1.49 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 17079 0 0 0 148 1 0 0 25 0 1 0 470889268 32788480 7111 33554432000 134512640 134731564 4289439744 18446744073709551615 134659010 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 8005 7111 289 54 0 7315 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32020

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

[startup+1.60034 s]
/proc/loadavg: 1.29 2.03 2.87 5/190 25914
/proc/meminfo: memFree=16750824/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=32020 CPUtime=1.59 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 17079 0 0 0 158 1 0 0 25 0 1 0 470889268 32788480 7111 33554432000 134512640 134731564 4289439744 18446744073709551615 134659064 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 8005 7111 289 54 0 7315 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 32020

[startup+2.4002 s]
/proc/loadavg: 1.51 2.07 2.88 5/190 25914
/proc/meminfo: memFree=16769324/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=12568 CPUtime=2.39 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 32354 0 0 0 236 3 0 0 25 0 1 0 470889268 12869632 2547 33554432000 134512640 134731564 4289439744 18446744073709551615 134582019 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 3142 2547 268 54 0 2452 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 12568

[startup+2.60115 s]
/proc/loadavg: 1.51 2.07 2.88 5/190 25914
/proc/meminfo: memFree=16769324/32951124 swapFree=67111528/67111528
[pid=25913] ppid=25911 vsize=16044 CPUtime=2.59 cores=4,6
/proc/25913/stat : 25913 (MPhaseSAT) R 25911 25913 24832 0 -1 4202496 33254 0 0 0 256 3 0 0 25 0 1 0 470889268 16429056 2518 33554432000 134512640 134731564 4289439744 18446744073709551615 134571614 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25913/statm: 4011 2518 268 54 0 3321 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 16044

Child status: 0
Real time (s): 2.6567
CPU time (s): 2.65559
CPU user time (s): 2.6136
CPU system time (s): 0.041993
CPU usage (%): 99.9583
Max. virtual memory (cumulated for all children) (KiB): 33460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6136
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 36838
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= 3

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-26 04:25:37
IDJOB=3291479
IDBENCH=84227
IDSOLVER=1520
FILE ID=node141/3291479-1303784736
RUNJOBID= node141-1303784734-25845
PBS_JOBID= 13157228
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT03/industrial/li/li-test4/li-test4-100.shuffled-as.sat03-370.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3291479-1303784736/watcher-3291479-1303784736 -o /tmp/evaluation-result-3291479-1303784736/solver-3291479-1303784736 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3291479-1303784736.cnf

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

MD5SUM BENCH= 5e5606ae7367b9272c60adc115594912
RANDOM SEED=277394291

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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	: 5332.84
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:      16779748 kB
Buffers:       1596656 kB
Cached:       13901144 kB
SwapCached:          0 kB
Active:        6182888 kB
Inactive:      9413832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16779748 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            8320 kB
Writeback:           0 kB
AnonPages:       98392 kB
Mapped:          16672 kB
Slab:           510840 kB
PageTables:       5328 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   280008 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= 71744 MiB
End job on node141 at 2011-04-26 04:25:39