Trace number 2682718

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
PB/CT 0.1 fixedUNSAT 1.41678 1.41755

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-blast-tlan2.ucl.opb
MD5SUM4e47a51846328cc5c7e86accfdb9dc80
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.073988
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2221
Total number of constraints3050
Number of constraints which are clauses2330
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints720
Minimum length of a constraint1
Maximum length of a constraint19
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 641
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 2174
Number of bits of the biggest sum of numbers12
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.09/0.14	c constraints 720/0 clauses 1765/0 units 360
0.09/0.14	c vars 2221
1.10/1.15	c 1.05584 60.7266 121 1702
1.38/1.41	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682718-1277476507/watcher-2682718-1277476507 -o /tmp/evaluation-result-2682718-1277476507/solver-2682718-1277476507 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682718-1277476507.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.93 0.58 2/106 26284
/proc/meminfo: memFree=1827384/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=2136 CPUtime=0
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 246 0 0 0 0 0 0 0 20 0 1 0 123252300 2187264 166 1992294400 134512640 136421960 4291283056 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26284/statm: 534 166 144 467 0 65 0

[startup+0.096458 s]
/proc/loadavg: 0.99 0.93 0.58 2/106 26284
/proc/meminfo: memFree=1827384/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=3456 CPUtime=0.09
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 584 0 0 0 9 0 0 0 20 0 1 0 123252300 3538944 504 1992294400 134512640 136421960 4291283056 18446744073709551615 134539240 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26284/statm: 864 504 146 467 0 395 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3456

[startup+0.101457 s]
/proc/loadavg: 0.99 0.93 0.58 2/106 26284
/proc/meminfo: memFree=1827384/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=3456 CPUtime=0.09
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 584 0 0 0 9 0 0 0 20 0 1 0 123252300 3538944 504 1992294400 134512640 136421960 4291283056 18446744073709551615 134544371 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26284/statm: 864 504 146 467 0 395 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3456

[startup+0.301497 s]
/proc/loadavg: 0.99 0.93 0.58 2/106 26284
/proc/meminfo: memFree=1827384/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=16140 CPUtime=0.29
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 3773 0 0 0 27 2 0 0 20 0 1 0 123252300 16527360 3693 1992294400 134512640 136421960 4291283056 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26284/statm: 4035 3694 193 467 0 3566 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16140

[startup+0.700575 s]
/proc/loadavg: 0.99 0.93 0.58 2/106 26284
/proc/meminfo: memFree=1827384/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=54064 CPUtime=0.69
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 13721 0 0 0 62 7 0 0 21 0 1 0 123252300 55361536 13105 1992294400 134512640 136421960 4291283056 18446744073709551615 134729583 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26284/statm: 13516 13105 194 467 0 13047 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 54064

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

[startup+1.10866 s]
/proc/loadavg: 0.99 0.93 0.58 2/107 26285
/proc/meminfo: memFree=1768724/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=62180 CPUtime=1.1
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 15729 0 0 0 101 9 0 0 22 0 1 0 123252300 63672320 14826 1992294400 134512640 136421960 4291283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26284/statm: 15545 14826 214 467 0 15076 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 62180

[startup+1.30069 s]
/proc/loadavg: 0.99 0.93 0.58 2/107 26285
/proc/meminfo: memFree=1768724/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=58600 CPUtime=1.28
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 15754 0 0 0 119 9 0 0 22 0 1 0 123252300 60006400 14063 1992294400 134512640 136421960 4291283056 18446744073709551615 134701503 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26284/statm: 14650 14063 238 467 0 14181 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 58600

[startup+1.40071 s]
/proc/loadavg: 0.99 0.93 0.58 2/107 26285
/proc/meminfo: memFree=1768724/2059040 swapFree=4136000/4192956
[pid=26284] ppid=26282 vsize=58600 CPUtime=1.38
/proc/26284/stat : 26284 (pbct) R 26282 26284 25911 0 -1 4202496 15754 0 0 0 129 9 0 0 22 0 1 0 123252300 60006400 14063 1992294400 134512640 136421960 4291283056 18446744073709551615 135818225 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26284/statm: 14650 14063 238 467 0 14181 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 58600

Child status: 0
Real time (s): 1.41755
CPU time (s): 1.41678
CPU user time (s): 1.3088
CPU system time (s): 0.107983
CPU usage (%): 99.946
Max. virtual memory (cumulated for all children) (KiB): 62180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3088
system time used= 0.107983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15755
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= 1
involuntary context switches= 19

runsolver used 0.007998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node011 at 2010-06-25 16:35:07
IDJOB=2682718
IDBENCH=1474
IDSOLVER=1192
FILE ID=node011/2682718-1277476507
PBS_JOBID= 11190525
Free space on /tmp= 62404 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-blast-tlan2.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682718-1277476507/watcher-2682718-1277476507 -o /tmp/evaluation-result-2682718-1277476507/solver-2682718-1277476507 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682718-1277476507.opb

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

MD5SUM BENCH= 4e47a51846328cc5c7e86accfdb9dc80
RANDOM SEED=582731247

node011.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.264
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.52
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		: 3000.264
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1827904 kB
Buffers:         43172 kB
Cached:          92912 kB
SwapCached:       9480 kB
Active:          65584 kB
Inactive:        83512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827904 kB
SwapTotal:     4192956 kB
SwapFree:      4136000 kB
Dirty:            2372 kB
Writeback:           0 kB
AnonPages:       11636 kB
Mapped:           8380 kB
Slab:            60192 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182328 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62404 MiB
End job on node011 at 2010-06-25 16:35:09