Trace number 1517988

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
clasp 1.2.0-SAT09-32UNSAT 246.115 246.175

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S23373420-028.cnf
MD5SUMc80ac2513e7d4a317f260e6d71a9bb08
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.2117
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 

246.03/246.17	c clasp version 1.2.0-SAT09 
246.03/246.17	c Reading from ...293625/instance-1517988-1238293625.cnf
246.03/246.17	c Reading      : Done(0.000s)
246.03/246.17	c Preprocessing: |-\Done(0.000s)
246.03/246.17	c Solving...
246.03/246.17	
246.03/246.17	c Models    : 0     
246.03/246.17	c Time         : 246.140s (Solve: 246.140s)
246.03/246.17	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-1517988-1238293625/watcher-1517988-1238293625 -o /tmp/evaluation-result-1517988-1238293625/solver-1517988-1238293625 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1517988-1238293625.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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: 1.03 1.17 1.09 3/64 27062
/proc/meminfo: memFree=1084952/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=1828 CPUtime=0
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 246 0 0 0 0 0 0 0 18 0 1 0 1102024834 1871872 228 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 457 228 170 377 0 77 0

[startup+0.00669394 s]
/proc/loadavg: 1.03 1.17 1.09 3/64 27062
/proc/meminfo: memFree=1084952/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=1828 CPUtime=0
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 1102024834 1871872 247 1992294400 134512640 136057169 4294956160 18446744073709551615 134823876 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 457 247 180 377 0 77 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1828

[startup+0.101701 s]
/proc/loadavg: 1.03 1.17 1.09 3/64 27062
/proc/meminfo: memFree=1084952/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=1960 CPUtime=0.1
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 278 0 0 0 10 0 0 0 18 0 1 0 1102024834 2007040 260 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 490 260 181 377 0 110 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1960

[startup+0.301718 s]
/proc/loadavg: 1.03 1.17 1.09 3/64 27062
/proc/meminfo: memFree=1084952/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=1960 CPUtime=0.3
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 298 0 0 0 30 0 0 0 19 0 1 0 1102024834 2007040 280 1992294400 134512640 136057169 4294956160 18446744073709551615 134823694 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 490 280 181 377 0 110 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1960

[startup+0.701757 s]
/proc/loadavg: 1.03 1.17 1.09 3/64 27062
/proc/meminfo: memFree=1084952/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=2092 CPUtime=0.7
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 325 0 0 0 70 0 0 0 22 0 1 0 1102024834 2142208 307 1992294400 134512640 136057169 4294956160 18446744073709551615 134756790 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 523 307 181 377 0 143 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2092

[startup+1.50183 s]
/proc/loadavg: 1.03 1.17 1.09 2/65 27063
/proc/meminfo: memFree=1084432/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=2224 CPUtime=1.5
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 362 0 0 0 150 0 0 0 25 0 1 0 1102024834 2277376 344 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 556 344 181 377 0 176 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2224

[startup+3.10298 s]
/proc/loadavg: 1.03 1.17 1.09 2/65 27063
/proc/meminfo: memFree=1084112/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=2488 CPUtime=3.1
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 411 0 0 0 310 0 0 0 25 0 1 0 1102024834 2547712 393 1992294400 134512640 136057169 4294956160 18446744073709551615 134828605 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 622 393 181 377 0 242 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 2488

[startup+6.30128 s]
/proc/loadavg: 1.03 1.17 1.09 2/65 27063
/proc/meminfo: memFree=1083728/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=2620 CPUtime=6.29
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 470 0 0 0 629 0 0 0 25 0 1 0 1102024834 2682880 452 1992294400 134512640 136057169 4294956160 18446744073709551615 134823797 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 655 452 181 377 0 275 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2620

[startup+12.7019 s]
/proc/loadavg: 1.03 1.16 1.09 2/65 27063
/proc/meminfo: memFree=1083280/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=3024 CPUtime=12.69
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 556 0 0 0 1269 0 0 0 25 0 1 0 1102024834 3096576 538 1992294400 134512640 136057169 4294956160 18446744073709551615 134823844 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 756 538 181 377 0 376 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3024

[startup+25.5011 s]
/proc/loadavg: 1.02 1.16 1.08 2/65 27063
/proc/meminfo: memFree=1082896/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=3420 CPUtime=25.49
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 655 0 0 0 2549 0 0 0 25 0 1 0 1102024834 3502080 637 1992294400 134512640 136057169 4294956160 18446744073709551615 134823889 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 855 637 181 377 0 475 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3420

[startup+51.1014 s]
/proc/loadavg: 1.01 1.14 1.08 2/65 27063
/proc/meminfo: memFree=1082512/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=3948 CPUtime=51.08
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 788 0 0 0 5108 0 0 0 25 0 1 0 1102024834 4042752 770 1992294400 134512640 136057169 4294956160 18446744073709551615 134618433 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 987 770 181 377 0 607 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 3948

[startup+102.305 s]
/proc/loadavg: 1.00 1.12 1.08 2/65 27063
/proc/meminfo: memFree=1081744/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=4616 CPUtime=102.27
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 964 0 0 0 10227 0 0 0 25 0 1 0 1102024834 4726784 946 1992294400 134512640 136057169 4294956160 18446744073709551615 134823803 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1154 946 181 377 0 774 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 4616

[startup+162.302 s]
/proc/loadavg: 1.00 1.09 1.07 2/65 27063
/proc/meminfo: memFree=1081104/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5288 CPUtime=162.25
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1119 0 0 0 16225 0 0 0 25 0 1 0 1102024834 5414912 1101 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1322 1101 181 377 0 942 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 5288

[startup+222.301 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080720/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=222.24
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1204 0 0 0 22223 1 0 0 25 0 1 0 1102024834 5828608 1186 1992294400 134512640 136057169 4294956160 18446744073709551615 134825006 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1186 181 377 0 1043 0
Current children cumulated CPU time (s) 222.24
Current children cumulated vsize (KiB) 5692

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

[startup+230.301 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=230.24
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1209 0 0 0 23023 1 0 0 25 0 1 0 1102024834 5828608 1191 1992294400 134512640 136057169 4294956160 18446744073709551615 134618456 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1191 181 377 0 1043 0
Current children cumulated CPU time (s) 230.24
Current children cumulated vsize (KiB) 5692

[startup+236.702 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=236.64
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1218 0 0 0 23663 1 0 0 25 0 1 0 1102024834 5828608 1200 1992294400 134512640 136057169 4294956160 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1200 181 377 0 1043 0
Current children cumulated CPU time (s) 236.64
Current children cumulated vsize (KiB) 5692

[startup+243.105 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=243.04
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1218 0 0 0 24303 1 0 0 25 0 1 0 1102024834 5828608 1200 1992294400 134512640 136057169 4294956160 18446744073709551615 134618152 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1200 181 377 0 1043 0
Current children cumulated CPU time (s) 243.04
Current children cumulated vsize (KiB) 5692

[startup+244.701 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=244.63
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1218 0 0 0 24462 1 0 0 25 0 1 0 1102024834 5828608 1200 1992294400 134512640 136057169 4294956160 18446744073709551615 135441070 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1200 181 377 0 1043 0
Current children cumulated CPU time (s) 244.63
Current children cumulated vsize (KiB) 5692

[startup+245.501 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=245.43
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1219 0 0 0 24542 1 0 0 25 0 1 0 1102024834 5828608 1201 1992294400 134512640 136057169 4294956160 18446744073709551615 134828324 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1201 181 377 0 1043 0
Current children cumulated CPU time (s) 245.43
Current children cumulated vsize (KiB) 5692

[startup+245.902 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=245.83
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1219 0 0 0 24582 1 0 0 25 0 1 0 1102024834 5828608 1201 1992294400 134512640 136057169 4294956160 18446744073709551615 134823758 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1201 181 377 0 1043 0
Current children cumulated CPU time (s) 245.83
Current children cumulated vsize (KiB) 5692

[startup+246.102 s]
/proc/loadavg: 1.00 1.07 1.06 2/65 27063
/proc/meminfo: memFree=1080656/2055920 swapFree=4176868/4192956
[pid=27062] ppid=27060 vsize=5692 CPUtime=246.03
/proc/27062/stat : 27062 (clasp) R 27060 27062 23679 0 -1 4194304 1219 0 0 0 24602 1 0 0 25 0 1 0 1102024834 5828608 1201 1992294400 134512640 136057169 4294956160 18446744073709551615 134618158 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27062/statm: 1423 1201 181 377 0 1043 0
Current children cumulated CPU time (s) 246.03
Current children cumulated vsize (KiB) 5692

Child status: 20
Real time (s): 246.175
CPU time (s): 246.115
CPU user time (s): 246.101
CPU system time (s): 0.013997
CPU usage (%): 99.9753
Max. virtual memory (cumulated for all children) (KiB): 5692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 246.101
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1225
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= 442

runsolver used 0.228965 second user time and 0.462929 second system time

The end

Launcher Data 

Begin job on node48 at 2009-03-29 04:27:05
IDJOB=1517988
IDBENCH=70642
IDSOLVER=508
FILE ID=node48/1517988-1238293625
PBS_JOBID= 9061006
Free space on /tmp= 66464 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S23373420-028.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517988-1238293625/watcher-1517988-1238293625 -o /tmp/evaluation-result-1517988-1238293625/solver-1517988-1238293625 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1517988-1238293625.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

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

MD5SUM BENCH= c80ac2513e7d4a317f260e6d71a9bb08
RANDOM SEED=229890780

node48.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		: 3000.236
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		: 3000.236
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:       1085432 kB
Buffers:         87844 kB
Cached:         785488 kB
SwapCached:      10192 kB
Active:         158280 kB
Inactive:       726796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085432 kB
SwapTotal:     4192956 kB
SwapFree:      4176868 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:          17436 kB
Slab:            71372 kB
Committed_AS:  2508968 kB
PageTables:       1376 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= 66464 MiB
End job on node48 at 2009-03-29 04:31:11