Trace number 3257827

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 2011-03-03? 13.7499 13.7501

General information on the benchmark

NameCRAFTED/rbsat/random/unforced/
rbsat-v1150c84314g1.cnf
MD5SUMeded74bffb721f48c45af6ff95302642
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark39.8949
Satisfiable
(Un)Satisfiability was proved
Number of variables1150
Number of clauses84314
Sum of the clauses size169678
Maximum clause length23
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 284264
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 550

Solver Data 

13.69/13.74	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
13.69/13.74	c input CNF file=HOME/instance-3257827-1303468363.cnf 
13.69/13.74	c Clause#=84314  var#=1150  ratio=73 
13.69/13.74	c Simplified clause#=80532 
13.69/13.74	c XOR_varElimination deleted var#=0 clauses#=80532 
13.69/13.74	c inative var#=0 
13.69/13.74	c free var#=1150  
13.69/13.74	c solving by ALO selection 
13.69/13.74	c 
13.69/13.74	c 
13.69/13.74	c SEGMENTATION FAULT 
13.69/13.74	c 
13.69/13.74	s UNKNOWN
13.69/13.74	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-3257827-1303468363/watcher-3257827-1303468363 -o /tmp/evaluation-result-3257827-1303468363/solver-3257827-1303468363 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3257827-1303468363.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: 4.06 4.01 3.92 4/189 6628
/proc/meminfo: memFree=21220812/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=5380 CPUtime=0 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 338 0 0 0 0 0 0 0 25 0 1 0 537067003 5509120 279 33554432000 134512640 134761588 4288751568 18446744073709551615 134531215 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 1345 279 225 61 0 648 0

[startup+0.023451 s]
/proc/loadavg: 4.06 4.01 3.92 4/189 6628
/proc/meminfo: memFree=21220812/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=5380 CPUtime=0.02 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 444 0 0 0 2 0 0 0 25 0 1 0 537067003 5509120 385 33554432000 134512640 134761588 4288751568 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 1345 385 225 61 0 648 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5380

[startup+0.100469 s]
/proc/loadavg: 4.06 4.01 3.92 4/189 6628
/proc/meminfo: memFree=21220812/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=5664 CPUtime=0.09 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 2040 0 0 0 9 0 0 0 25 0 1 0 537067003 5799936 920 33554432000 134512640 134761588 4288751568 18446744073709551615 134559056 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 1416 920 238 61 0 719 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5664

[startup+0.300427 s]
/proc/loadavg: 4.06 4.01 3.92 4/189 6628
/proc/meminfo: memFree=21220812/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=9716 CPUtime=0.29 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 5098 0 0 0 29 0 0 0 25 0 1 0 537067003 9949184 1991 33554432000 134512640 134761588 4288751568 18446744073709551615 134614193 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2429 1991 269 61 0 1732 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9716

[startup+0.700372 s]
/proc/loadavg: 4.06 4.01 3.92 4/189 6628
/proc/meminfo: memFree=21220812/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=10316 CPUtime=0.69 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 5248 0 0 0 69 0 0 0 25 0 1 0 537067003 10563584 2141 33554432000 134512640 134761588 4288751568 18446744073709551615 134705285 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2579 2141 269 61 0 1882 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10316

[startup+1.5002 s]
/proc/loadavg: 4.06 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21213124/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=10316 CPUtime=1.49 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 5248 0 0 0 149 0 0 0 25 0 1 0 537067003 10563584 2141 33554432000 134512640 134761588 4288751568 18446744073709551615 134614584 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2579 2141 269 61 0 1882 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10316

[startup+3.10096 s]
/proc/loadavg: 4.06 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21214736/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=8844 CPUtime=3.09 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 6454 0 0 0 309 0 0 0 25 0 1 0 537067003 9056256 1747 33554432000 134512640 134761588 4288751568 18446744073709551615 134614427 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2211 1747 274 61 0 1514 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8844

[startup+6.30044 s]
/proc/loadavg: 4.06 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21213988/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=12236 CPUtime=6.3 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 7536 0 0 0 629 1 0 0 25 0 1 0 537067003 12529664 2523 33554432000 134512640 134761588 4288751568 18446744073709551615 134747206 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 3059 2523 275 61 0 2362 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 12236

[startup+12.7004 s]
/proc/loadavg: 4.05 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21214664/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=10596 CPUtime=12.7 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 7896 0 0 0 1269 1 0 0 25 0 1 0 537067003 10850304 2113 33554432000 134512640 134761588 4288751568 18446744073709551615 134636053 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2649 2113 275 61 0 1952 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 10596

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

[startup+13.5002 s]
/proc/loadavg: 4.05 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21209952/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=11748 CPUtime=13.49 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 8184 0 0 0 1348 1 0 0 25 0 1 0 537067003 12029952 2401 33554432000 134512640 134761588 4288751568 18446744073709551615 134635923 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2937 2401 275 61 0 2240 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 11748

[startup+13.7002 s]
/proc/loadavg: 4.05 4.01 3.92 5/190 6629
/proc/meminfo: memFree=21209952/32951124 swapFree=67110396/67111528
[pid=6628] ppid=6626 vsize=11748 CPUtime=13.69 cores=4,6
/proc/6628/stat : 6628 (MPhaseSAT64) R 6626 6628 6230 0 -1 4202496 8184 0 0 0 1368 1 0 0 25 0 1 0 537067003 12029952 2401 33554432000 134512640 134761588 4288751568 18446744073709551615 134635887 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6628/statm: 2937 2401 275 61 0 2240 0
Current children cumulated CPU time (s) 13.69
Current children cumulated vsize (KiB) 11748

Child status: 0
Real time (s): 13.7501
CPU time (s): 13.7499
CPU user time (s): 13.7389
CPU system time (s): 0.010998
CPU usage (%): 99.9989
Max. virtual memory (cumulated for all children) (KiB): 12492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.7389
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8187
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= 7
involuntary context switches= 15

runsolver used 0.018997 second user time and 0.058991 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-22 12:32:43
IDJOB=3257827
IDBENCH=71273
IDSOLVER=1521
FILE ID=node118/3257827-1303468363
RUNJOBID= node118-1303466902-6249
PBS_JOBID= 13107181
Free space on /tmp= 71720 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT09/CRAFTED/rbsat/random/unforced/rbsat-v1150c84314g1.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3257827-1303468363/watcher-3257827-1303468363 -o /tmp/evaluation-result-3257827-1303468363/solver-3257827-1303468363 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3257827-1303468363.cnf

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

MD5SUM BENCH= eded74bffb721f48c45af6ff95302642
RANDOM SEED=880300977

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21221092 kB
Buffers:       1152492 kB
Cached:        9921804 kB
SwapCached:        600 kB
Active:        7547664 kB
Inactive:      3678236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21221092 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:            1588 kB
Writeback:           0 kB
AnonPages:      150404 kB
Mapped:          16588 kB
Slab:           438332 kB
PageTables:       5068 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   339988 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= 71720 MiB
End job on node118 at 2011-04-22 12:32:57