Trace number 361975

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, and are wall clock time (not CPU 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
PBS4 2007-03-23UNSAT 1.36579 1.36644

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-ooo.burch_dill.2.accl.ucl.opb
MD5SUMa1104c8fec3fd69abc0a798c3b6bfa5b
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.36579
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2152
Total number of constraints5613
Number of constraints which are clauses5137
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints476
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 35
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 129
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb ......
1.29/1.36	c done parsing opb.
1.29/1.36	s UNSATISFIABLE
1.29/1.36	c Total Run Time					1.3008

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-361975-1177004961 -o ROOT/results/node5/solver-361975-1177004961 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/361975-1177004961/PBS4 /tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 1.00 1.00 1.00 3/77 572
/proc/meminfo: memFree=1673152/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=1664 CPUtime=0
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 202 0 0 0 0 0 0 0 18 0 1 0 176533766 1703936 184 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134801797 0 0 4096 0 0 0 0 17 1 0 0
/proc/572/statm: 416 184 87 219 0 193 0

[startup+0.0952551 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 572
/proc/meminfo: memFree=1673152/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=2156 CPUtime=0.09
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 369 0 0 0 9 0 0 0 18 0 1 0 176533766 2207744 351 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 539 351 92 219 0 316 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2156

[startup+0.101255 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 572
/proc/meminfo: memFree=1673152/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=2156 CPUtime=0.09
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 374 0 0 0 9 0 0 0 18 0 1 0 176533766 2207744 356 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 539 356 92 219 0 316 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2156

[startup+0.301277 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 572
/proc/meminfo: memFree=1673152/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=3052 CPUtime=0.29
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 516 0 0 0 29 0 0 0 20 0 1 0 176533766 3125248 498 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 763 498 93 219 0 540 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3052

[startup+0.701322 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 572
/proc/meminfo: memFree=1673152/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=4532 CPUtime=0.69
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 803 0 0 0 68 1 0 0 24 0 1 0 176533766 4640768 736 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 1133 736 94 219 0 910 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4532

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

[startup+1.10537 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 573
/proc/meminfo: memFree=1670072/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=4672 CPUtime=1.1
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 907 0 0 0 108 2 0 0 25 0 1 0 176533766 4784128 840 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 1168 840 94 219 0 945 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4672

[startup+1.30139 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 573
/proc/meminfo: memFree=1670072/2055920 swapFree=4151632/4192956
[pid=572] ppid=570 vsize=4672 CPUtime=1.29
/proc/572/stat : 572 (PBS4) R 570 572 32601 0 -1 4194304 920 0 0 0 127 2 0 0 25 0 1 0 176533766 4784128 853 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/572/statm: 1168 853 94 219 0 945 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 4672

Child status: 0
Real time (s): 1.36644
CPU time (s): 1.36579
CPU user time (s): 1.3368
CPU system time (s): 0.028995
CPU usage (%): 99.9526
Max. virtual memory (cumulated for all children) (KiB): 4672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3368
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 938
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= 8
involuntary context switches= 27

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Thu Apr 19 17:49:21 UTC 2007

IDJOB= 361975
IDBENCH= 1491
IDSOLVER= 157
FILE ID= node5/361975-1177004961

PBS_JOBID= 4630492

Free space on /tmp= 66356 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.2.accl.ucl.opb
COMMAND LINE= /tmp/evaluation/361975-1177004961/PBS4 /tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-361975-1177004961 -o ROOT/results/node5/conversion-361975-1177004961 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-361975-1177004961 -o ROOT/results/node5/solver-361975-1177004961 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/361975-1177004961/PBS4 /tmp/evaluation/361975-1177004961/instance-361975-1177004961.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a1104c8fec3fd69abc0a798c3b6bfa5b

RANDOM SEED= 591235345

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1673560 kB
Buffers:         33052 kB
Cached:         285844 kB
SwapCached:       9408 kB
Active:          66456 kB
Inactive:       275336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1673560 kB
SwapTotal:     4192956 kB
SwapFree:      4151632 kB
Dirty:            1424 kB
Writeback:           0 kB
Mapped:          29900 kB
Slab:            26116 kB
Committed_AS:  8663864 kB
PageTables:       1720 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= 66356 MiB

End job on node5 on Thu Apr 19 17:49:23 UTC 2007