Trace number 3265969

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
march_rw 2011-03-02UNSAT 2.41663 2.41746

General information on the benchmark

NameSAT05/crafted/sorge05/QG8/
gensys-ukn007.shuffled-as.sat05-3586.cnf
MD5SUM312775ce47b8a7594b8f60875df3f4f2
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.047991
Satisfiable
(Un)Satisfiability was proved
Number of variables583
Number of clauses54220
Sum of the clauses size242460
Maximum clause length9
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 22600
Number of clauses of size 310808
Number of clauses of size 456
Number of clauses of size 540376
Number of clauses of size over 5344

Solver Data 

2.19/2.27	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.19/2.27	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
2.19/2.27	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
2.19/2.27	c main()::
2.19/2.27	c initFormula():: searching for DIMACS p-line....
2.19/2.27	c full lookahead due to high density!
2.19/2.27	c initFormula():: the DIMACS p-line indicates a CNF of 583 variables and 54220 clauses.
2.19/2.27	c parseCNF():: parsing....
2.19/2.27	c parseCNF():: the CNF contains 36 unary clauses.
2.19/2.27	c runParser():: parsing was successful, warming up engines...
2.19/2.27	c find_and_remove_tautogolies():: found and removed 178 tautologies
2.19/2.27	c simplify_formula():: removed 0 tautological, 2524 satisfied and 29988 duplicate clauses
2.19/2.27	c preprocessing fase I completed:: there are now 127 free variables and 21708 clauses.
2.19/2.27	c using k-SAT heuristics (size based diff)
2.19/2.27	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.19/2.27	c simplify_formula():: removed 0 tautological, 0 satisfied and 141694 duplicate clauses
2.19/2.27	c resolvent_look() :: found 230 resolvents
2.19/2.27	c main():: clause / variable ratio: ( 21938 / 583 ) = 37.63
2.19/2.27	c longest clause has size 9
2.19/2.27	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.19/2.27	c number of free variables = 127
2.19/2.27	c dynamic_preselect_setsize :: off
2.19/2.27	c main():: all systems go!
2.19/2.27	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |********
c |**********
c |************
c |****************
c |********************************
c |****************************************************************| (0/0) NodeCount: 28
2.38/2.41	c |----------------------------------------------------------------|
c |
2.38/2.41	c
2.38/2.41	c main():: nodeCount: 28
2.38/2.41	c main():: dead ends in main: 0
2.38/2.41	c main():: lookAheadCount: 2455
2.38/2.41	c main():: unitResolveCount: 567
2.38/2.41	c main():: time=2.400000
2.38/2.41	c main():: necessary_assignments: 1
2.38/2.41	c main():: bin_sat: 0, bin_unsat 0
2.38/2.41	c main():: doublelook: #: 33, succes #: 19
2.38/2.41	c main():: doublelook: overall 1.413 of all possible doublelooks executed
2.38/2.41	c main():: doublelook: succesrate: 57.576, average DL_trigger: 291.564
2.38/2.41	s UNSATISFIABLE

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-3265969-1303580043/watcher-3265969-1303580043 -o /tmp/evaluation-result-3265969-1303580043/solver-3265969-1303580043 -C 2400 -W 1300 -M 7680 ./march_rw HOME/instance-3265969-1303580043.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: 3.39 3.87 3.89 4/189 2602
/proc/meminfo: memFree=20263528/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=7228 CPUtime=0 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4194304 346 0 0 0 0 0 0 0 22 0 1 0 469603999 7401472 290 33554432000 4194304 4300876 140735642330816 18446744073709551615 208080232192 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 1807 290 113 27 0 256 0

[startup+0.0605571 s]
/proc/loadavg: 3.39 3.87 3.89 4/189 2602
/proc/meminfo: memFree=20263528/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=11628 CPUtime=0.05 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4194304 1225 0 0 0 5 0 0 0 22 0 1 0 469603999 11907072 897 33554432000 4194304 4300876 140735642330816 18446744073709551615 208079627732 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 2907 897 127 27 0 1356 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 11628

[startup+0.100551 s]
/proc/loadavg: 3.39 3.87 3.89 4/189 2602
/proc/meminfo: memFree=20263528/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=11564 CPUtime=0.09 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4194304 3156 0 0 0 9 0 0 0 22 0 1 0 469603999 11841536 892 33554432000 4194304 4300876 140735642330816 18446744073709551615 208079627640 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 2891 892 129 27 0 1340 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11564

[startup+0.30051 s]
/proc/loadavg: 3.39 3.87 3.89 4/189 2602
/proc/meminfo: memFree=20263528/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=12348 CPUtime=0.29 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 5187 0 0 0 29 0 0 0 23 0 1 0 469603999 12644352 1129 33554432000 4194304 4300876 140735642330816 18446744073709551615 4256624 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 3087 1129 144 27 0 1536 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12348

[startup+0.700433 s]
/proc/loadavg: 3.39 3.87 3.89 4/189 2602
/proc/meminfo: memFree=20263528/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=13248 CPUtime=0.69 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 5341 0 0 0 69 0 0 0 25 0 1 0 469603999 13565952 1283 33554432000 4194304 4300876 140735642330816 18446744073709551615 4214645 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 3312 1283 144 27 0 1761 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13248

[startup+1.50035 s]
/proc/loadavg: 3.39 3.87 3.89 5/190 2657
/proc/meminfo: memFree=20253592/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=15596 CPUtime=1.49 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 5903 0 0 0 149 0 0 0 25 0 1 0 469603999 15970304 1845 33554432000 4194304 4300876 140735642330816 18446744073709551615 4256815 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 3899 1846 144 27 0 2348 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15596

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

[startup+1.90026 s]
/proc/loadavg: 3.39 3.87 3.89 5/190 2657
/proc/meminfo: memFree=20253592/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=16520 CPUtime=1.89 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 6209 0 0 0 189 0 0 0 25 0 1 0 469603999 16916480 2151 33554432000 4194304 4300876 140735642330816 18446744073709551615 4256612 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 4130 2151 144 27 0 2579 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 16520

[startup+2.30019 s]
/proc/loadavg: 3.39 3.87 3.89 5/190 2657
/proc/meminfo: memFree=20248392/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=17684 CPUtime=2.28 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 7509 0 0 0 228 0 0 0 25 0 1 0 469603999 18108416 2475 33554432000 4194304 4300876 140735642330816 18446744073709551615 4276256 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 4421 2475 170 27 0 2870 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 17684

[startup+2.40011 s]
/proc/loadavg: 3.39 3.87 3.89 5/190 2657
/proc/meminfo: memFree=20248392/32950928 swapFree=67111524/67111528
[pid=2602] ppid=2600 vsize=17684 CPUtime=2.38 cores=4,6
/proc/2602/stat : 2602 (march_rw) R 2600 2602 2085 0 -1 4202496 7510 0 0 0 238 0 0 0 25 0 1 0 469603999 18108416 2476 33554432000 4194304 4300876 140735642330816 18446744073709551615 4276261 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2602/statm: 4421 2476 171 27 0 2870 0
Current children cumulated CPU time (s) 2.38
Current children cumulated vsize (KiB) 17684

Child status: 20
Real time (s): 2.41746
CPU time (s): 2.41663
CPU user time (s): 2.40563
CPU system time (s): 0.010998
CPU usage (%): 99.9659
Max. virtual memory (cumulated for all children) (KiB): 18660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.40563
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= 7511
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= 2

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node127 at 2011-04-23 19:34:03
IDJOB=3265969
IDBENCH=85883
IDSOLVER=1561
FILE ID=node127/3265969-1303580043
RUNJOBID= node127-1303580043-2561
PBS_JOBID= 13150326
Free space on /tmp= 71240 MiB

SOLVER NAME= march_rw 2011-03-02
BENCH NAME= SAT05/crafted/sorge05/QG8/gensys-ukn007.shuffled-as.sat05-3586.cnf
COMMAND LINE= ./march_rw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265969-1303580043/watcher-3265969-1303580043 -o /tmp/evaluation-result-3265969-1303580043/solver-3265969-1303580043 -C 2400 -W 1300 -M 7680  ./march_rw HOME/instance-3265969-1303580043.cnf

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

MD5SUM BENCH= 312775ce47b8a7594b8f60875df3f4f2
RANDOM SEED=1683357930

node127.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		: 2666.823
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	: 5333.64
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		: 2666.823
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	: 5332.83
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		: 2666.823
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:      20263684 kB
Buffers:       2385368 kB
Cached:        9680604 kB
SwapCached:          4 kB
Active:        8178948 kB
Inactive:      3960932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20263684 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            2172 kB
Writeback:           0 kB
AnonPages:       71604 kB
Mapped:          14876 kB
Slab:           483524 kB
PageTables:       5888 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   259792 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= 71240 MiB
End job on node127 at 2011-04-23 19:34:06