Trace number 3205935

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
SAT09 reference solver: march_hi hiSAT 0.273957 0.275081

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S241605246-015.SATISFIABLE.cnf
MD5SUMa2636b8675c559c02b749d6959527a10
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses1597
Sum of the clauses size7985
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 51597
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c full lookahead due to high density!
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 75 variables and 1597 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 75 free variables and 1597 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.036
0.00/0.01	c using k-SAT heuristics (size based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 4 duplicate clauses
0.00/0.01	c resolvent_look() :: found 5 resolvents
0.00/0.01	c main():: clause / variable ratio: ( 1602 / 75 ) = 21.36
0.00/0.01	c longest clause has size 5
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 75
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/11) NodeCount: 150
0.00/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/11) NodeCount: 1394
0.19/0.20	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
0.19/0.27	c |10000001000.0000101000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
0.19/0.27	
c |*******************************
0.19/0.27	c
0.19/0.27	c main():: nodeCount: 1899
0.19/0.27	c main():: dead ends in main: 0
0.19/0.27	c main():: lookAheadCount: 107910
0.19/0.27	c main():: unitResolveCount: 4478
0.19/0.27	c main():: time=0.270000
0.19/0.27	c main():: necessary_assignments: 27
0.19/0.27	c main():: bin_sat: 0, bin_unsat 0
0.19/0.27	c main():: doublelook: #: 7127, succes #: 5740
0.19/0.27	c main():: doublelook: overall 6.757 of all possible doublelooks executed
0.19/0.27	c main():: doublelook: succesrate: 80.539, average DL_trigger: 21.466
0.19/0.27	c main():: SOLUTION VERIFIED :-)
0.19/0.27	s SATISFIABLE
0.19/0.27	v 1 -2 -3 4 5 -6 -7 -8 9 10 -11 12 -13 14 15 16 17 18 -19 -20 -21 -22 -23 -24 25 26 27 -28 -29 -30 31 -32 -33 34 35 36 -37 38 39 -40 -41 -42 -43 44 -45 -46 47 -48 -49 50 -51 52 53 54 55 56 57 -58 -59 -60 -61 62 -63 -64 -65 66 67 -68 69 -70 -71 72 -73 -74 75 0

Verifier Data 

OK

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-3205935-1307665905/watcher-3205935-1307665905 -o /tmp/evaluation-result-3205935-1307665905/solver-3205935-1307665905 -C 2400 -W 1300 -M 7680 HOME/march_hi HOME/instance-3205935-1307665905.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: 1.72 1.94 1.94 3/178 11396
/proc/meminfo: memFree=32586604/32950928 swapFree=67052072/67111528
[pid=11396] ppid=11393 vsize=1032 CPUtime=0 cores=0,2
/proc/11396/stat : 11396 (march_hi) R 11393 11396 11345 0 -1 4202496 181 0 0 0 0 0 0 0 25 0 1 0 878189259 1056768 135 33554432000 134512640 135197378 4292571120 18446744073709551615 134578135 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11396/statm: 258 135 82 168 0 89 0

[startup+0.00783696 s]
/proc/loadavg: 1.72 1.94 1.94 3/178 11396
/proc/meminfo: memFree=32586604/32950928 swapFree=67052072/67111528
[pid=11396] ppid=11393 vsize=1032 CPUtime=0 cores=0,2
/proc/11396/stat : 11396 (march_hi) R 11393 11396 11345 0 -1 4202496 181 0 0 0 0 0 0 0 25 0 1 0 878189259 1056768 135 33554432000 134512640 135197378 4292571120 18446744073709551615 134578135 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11396/statm: 258 135 82 168 0 89 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1032

[startup+0.100814 s]
/proc/loadavg: 1.72 1.94 1.94 3/178 11396
/proc/meminfo: memFree=32586604/32950928 swapFree=67052072/67111528
[pid=11396] ppid=11393 vsize=1296 CPUtime=0.09 cores=0,2
/proc/11396/stat : 11396 (march_hi) R 11393 11396 11345 0 -1 4202496 232 0 0 0 9 0 0 0 25 0 1 0 878189259 1327104 186 33554432000 134512640 135197378 4292571120 18446744073709551615 134603262 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11396/statm: 324 186 93 168 0 155 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1296

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

[startup+0.200796 s]
/proc/loadavg: 1.72 1.94 1.94 3/178 11396
/proc/meminfo: memFree=32586604/32950928 swapFree=67052072/67111528
[pid=11396] ppid=11393 vsize=1296 CPUtime=0.19 cores=0,2
/proc/11396/stat : 11396 (march_hi) R 11393 11396 11345 0 -1 4202496 232 0 0 0 19 0 0 0 25 0 1 0 878189259 1327104 186 33554432000 134512640 135197378 4292571120 18446744073709551615 134550709 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11396/statm: 324 186 93 168 0 155 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1296

Child status: 10
Real time (s): 0.275081
CPU time (s): 0.273957
CPU user time (s): 0.272958
CPU system time (s): 0.000999
CPU usage (%): 99.5914
Max. virtual memory (cumulated for all children) (KiB): 1296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.272958
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234
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= 2
involuntary context switches= 4

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-06-10 02:31:45
IDJOB=3205935
IDBENCH=82942
IDSOLVER=1623
FILE ID=node120/3205935-1307665905
RUNJOBID= node120-1307665905-11363
PBS_JOBID= 13549466
Free space on /tmp= 74044 MiB

SOLVER NAME= SAT09 reference solver: march_hi hi
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S241605246-015.SATISFIABLE.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3205935-1307665905/watcher-3205935-1307665905 -o /tmp/evaluation-result-3205935-1307665905/solver-3205935-1307665905 -C 2400 -W 1300 -M 7680  HOME/march_hi HOME/instance-3205935-1307665905.cnf

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

MD5SUM BENCH= a2636b8675c559c02b749d6959527a10
RANDOM SEED=1786713936

node120.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		: 2666.809
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		: 2666.809
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	: 5226.07
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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	: 5332.82
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		: 2666.809
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:     32950928 kB
MemFree:      32587444 kB
Buffers:         57148 kB
Cached:         136224 kB
SwapCached:      11116 kB
Active:         102140 kB
Inactive:       108224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32587444 kB
SwapTotal:    67111528 kB
SwapFree:     67052072 kB
Dirty:            1708 kB
Writeback:           0 kB
AnonPages:       15192 kB
Mapped:           8440 kB
Slab:            85076 kB
PageTables:       5212 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   194032 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= 74040 MiB
End job on node120 at 2011-06-10 02:31:45