Trace number 1517917

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_hi hiUNSAT 22.2306 22.2375

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S367138237-029.cnf
MD5SUMfe0a666da3389b49d8bffa123f8cecff
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark22.2306
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
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 initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 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, 17 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 357 free variables and 1513 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.477
0.00/0.01	c using 3-SAT heuristics (occurence 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 164 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1588 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1588 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1588 / 360 ) = 4.41
0.00/0.01	c longest clause has size 3
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 = 357
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/13) NodeCount: 182
0.04/0.09	c |----------------------------------------------------------------|
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0.49/0.56	c |----------------------------------------------------------------|
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2.29/2.38	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/13) NodeCount: 15253
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c |****************************************************************| ( 4/13) NodeCount: 27883
11.69/11.77	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/13) NodeCount: 38888
16.99/17.03	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/13) NodeCount: 45343
20.29/20.36	c |----------------------------------------------------------------|
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21.78/21.82	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/13) NodeCount: 48276
22.08/22.18	c |----------------------------------------------------------------|
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22.18/22.23	c |----------------------------------------------------------------|
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c |****************************************************************| (10/13) NodeCount: 48350
22.18/22.23	c |----------------------------------------------------------------|
c |
22.18/22.23	c
22.18/22.23	c main():: nodeCount: 48350
22.18/22.23	c main():: dead ends in main: 1403
22.18/22.23	c main():: lookAheadCount: 3319066
22.18/22.23	c main():: unitResolveCount: 557260
22.18/22.23	c main():: time=22.220000
22.18/22.23	c main():: necessary_assignments: 11843
22.18/22.23	c main():: bin_sat: 0, bin_unsat 0
22.18/22.23	c main():: doublelook: #: 188267, succes #: 135362
22.18/22.23	c main():: doublelook: overall 5.871 of all possible doublelooks executed
22.18/22.23	c main():: doublelook: succesrate: 71.899, average DL_trigger: 44.722
22.18/22.23	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517917-1238292876/watcher-1517917-1238292876 -o /tmp/evaluation-result-1517917-1238292876/solver-1517917-1238292876 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517917-1238292876.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.92 3/64 2739
/proc/meminfo: memFree=1008968/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=972 CPUtime=0
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 1101953863 995328 117 1992294400 134512640 135197378 4294956240 18446744073709551615 134560743 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 243 117 66 167 0 74 0

[startup+0.0513249 s]
/proc/loadavg: 0.99 0.98 0.92 3/64 2739
/proc/meminfo: memFree=1008968/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1504 CPUtime=0.04
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 240 0 0 0 4 0 0 0 18 0 1 0 1101953863 1540096 223 1992294400 134512640 135197378 4294956240 18446744073709551615 134539251 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 376 223 91 167 0 207 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1504

[startup+0.101335 s]
/proc/loadavg: 0.99 0.98 0.92 3/64 2739
/proc/meminfo: memFree=1008968/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1504 CPUtime=0.09
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 248 0 0 0 9 0 0 0 18 0 1 0 1101953863 1540096 231 1992294400 134512640 135197378 4294956240 18446744073709551615 134548451 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 376 231 91 167 0 207 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1504

[startup+0.301374 s]
/proc/loadavg: 0.99 0.98 0.92 3/64 2739
/proc/meminfo: memFree=1008968/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1504 CPUtime=0.29
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 255 0 0 0 29 0 0 0 19 0 1 0 1101953863 1540096 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 376 238 91 167 0 207 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1504

[startup+0.701453 s]
/proc/loadavg: 0.99 0.98 0.92 3/64 2739
/proc/meminfo: memFree=1008968/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1636 CPUtime=0.69
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 266 0 0 0 69 0 0 0 22 0 1 0 1101953863 1675264 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134618637 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 409 249 91 167 0 240 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1636

[startup+1.50161 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1008320/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1636 CPUtime=1.49
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 275 0 0 0 149 0 0 0 25 0 1 0 1101953863 1675264 258 1992294400 134512640 135197378 4294956240 18446744073709551615 134552532 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 409 258 91 167 0 240 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1636

[startup+3.10192 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1008128/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1636 CPUtime=3.09
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 279 0 0 0 309 0 0 0 25 0 1 0 1101953863 1675264 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134525358 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 409 262 91 167 0 240 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1636

[startup+6.30155 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1008064/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1636 CPUtime=6.29
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 291 0 0 0 629 0 0 0 25 0 1 0 1101953863 1675264 274 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 409 274 91 167 0 240 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1636

[startup+12.7018 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007936/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1824 CPUtime=12.69
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 315 0 0 0 1269 0 0 0 25 0 1 0 1101953863 1867776 298 1992294400 134512640 135197378 4294956240 18446744073709551615 134541921 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 456 298 91 167 0 287 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1824

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

[startup+19.1011 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007744/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1968 CPUtime=19.09
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 366 0 0 0 1909 0 0 0 25 0 1 0 1101953863 2015232 347 1992294400 134512640 135197378 4294956240 18446744073709551615 134552934 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 492 347 91 167 0 323 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 1968

[startup+20.7014 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007680/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1968 CPUtime=20.68
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 372 0 0 0 2068 0 0 0 25 0 1 0 1101953863 2015232 353 1992294400 134512640 135197378 4294956240 18446744073709551615 134539201 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 492 353 91 167 0 323 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 1968

[startup+21.5015 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007680/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=1968 CPUtime=21.48
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 375 0 0 0 2148 0 0 0 25 0 1 0 1101953863 2015232 356 1992294400 134512640 135197378 4294956240 18446744073709551615 134552532 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 492 356 91 167 0 323 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 1968

[startup+21.9016 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007680/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=2068 CPUtime=21.89
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 377 0 0 0 2189 0 0 0 25 0 1 0 1101953863 2117632 358 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 517 358 91 167 0 348 0
Current children cumulated CPU time (s) 21.89
Current children cumulated vsize (KiB) 2068

[startup+22.1017 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007680/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=2068 CPUtime=22.08
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 378 0 0 0 2208 0 0 0 25 0 1 0 1101953863 2117632 359 1992294400 134512640 135197378 4294956240 18446744073709551615 134597005 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 517 359 91 167 0 348 0
Current children cumulated CPU time (s) 22.08
Current children cumulated vsize (KiB) 2068

[startup+22.2017 s]
/proc/loadavg: 0.99 0.98 0.92 2/65 2740
/proc/meminfo: memFree=1007680/2055920 swapFree=4176728/4192956
[pid=2739] ppid=2737 vsize=2068 CPUtime=22.18
/proc/2739/stat : 2739 (march_hi) R 2737 2739 1899 0 -1 4194304 379 0 0 0 2218 0 0 0 25 0 1 0 1101953863 2117632 360 1992294400 134512640 135197378 4294956240 18446744073709551615 134552976 0 0 4096 0 0 0 0 17 1 0 0
/proc/2739/statm: 517 360 91 167 0 348 0
Current children cumulated CPU time (s) 22.18
Current children cumulated vsize (KiB) 2068

Child status: 20
Real time (s): 22.2375
CPU time (s): 22.2306
CPU user time (s): 22.2246
CPU system time (s): 0.005999
CPU usage (%): 99.9691
Max. virtual memory (cumulated for all children) (KiB): 2068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.2246
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 382
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= 47

runsolver used 0.023996 second user time and 0.06399 second system time

The end

Launcher Data 

Begin job on node11 at 2009-03-29 04:14:36
IDJOB=1517917
IDBENCH=70636
IDSOLVER=521
FILE ID=node11/1517917-1238292876
PBS_JOBID= 9060933
Free space on /tmp= 66356 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S367138237-029.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517917-1238292876/watcher-1517917-1238292876 -o /tmp/evaluation-result-1517917-1238292876/solver-1517917-1238292876 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517917-1238292876.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fe0a666da3389b49d8bffa123f8cecff
RANDOM SEED=216029437

node11.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.274
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.274
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1009384 kB
Buffers:        100940 kB
Cached:         845896 kB
SwapCached:      10196 kB
Active:         230256 kB
Inactive:       728204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1009384 kB
SwapTotal:     4192956 kB
SwapFree:      4176728 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          17412 kB
Slab:            74020 kB
Committed_AS:  2788068 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66352 MiB
End job on node11 at 2009-03-29 04:14:58