Trace number 2682695

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 0.735887 0.73626

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-46s.smv.opb
MD5SUM3549530e67a18968a913c3e0a7729641
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 benchmark0.055991
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables1612
Total number of constraints3653
Number of constraints which are clauses3273
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints380
Minimum length of a constraint1
Maximum length of a constraint13
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 79
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 268
Number of bits of the biggest sum of numbers9
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
0.00/0.07	c constraints 380/0 clauses 2423/0 units 320
0.00/0.07	c vars 1612
0.59/0.63	c 0.59091 29.9609 299 2014
0.69/0.73	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-2682695-1277476396/watcher-2682695-1277476396 -o /tmp/evaluation-result-2682695-1277476396/solver-2682695-1277476396 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682695-1277476396.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: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=2136 CPUtime=0
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 246 0 0 0 0 0 0 0 18 0 1 0 123241144 2187264 165 1992294400 134512640 136421960 4294671024 18446744073709551615 135408480 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25500/statm: 534 165 144 467 0 65 0

[startup+0.109292 s]
/proc/loadavg: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=7788 CPUtime=0.1
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 1626 0 0 0 10 0 0 0 20 0 1 0 123241144 7974912 1545 1992294400 134512640 136421960 4294671024 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25500/statm: 1947 1547 187 467 0 1478 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7788

[startup+0.200308 s]
/proc/loadavg: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=14136 CPUtime=0.19
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 3235 0 0 0 18 1 0 0 20 0 1 0 123241144 14475264 3154 1992294400 134512640 136421960 4294671024 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25500/statm: 3534 3155 193 467 0 3065 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 14136

[startup+0.300326 s]
/proc/loadavg: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=26496 CPUtime=0.29
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 6365 0 0 0 27 2 0 0 20 0 1 0 123241144 27131904 6218 1992294400 134512640 136421960 4294671024 18446744073709551615 134632335 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25500/statm: 6624 6218 194 467 0 6155 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 26496

[startup+0.700398 s]
/proc/loadavg: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=28772 CPUtime=0.69
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 7498 0 0 0 65 4 0 0 21 0 1 0 123241144 29462528 6775 1992294400 134512640 136421960 4294671024 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25500/statm: 7193 6775 237 467 0 6724 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 28772

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

[startup+0.700398 s]
/proc/loadavg: 1.00 0.91 0.53 3/106 25500
/proc/meminfo: memFree=1785856/2059040 swapFree=4136480/4192956
[pid=25500] ppid=25498 vsize=28772 CPUtime=0.69
/proc/25500/stat : 25500 (pbct) R 25498 25500 25212 0 -1 4202496 7498 0 0 0 65 4 0 0 21 0 1 0 123241144 29462528 6775 1992294400 134512640 136421960 4294671024 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25500/statm: 7193 6775 237 467 0 6724 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 28772

Child status: 0
Real time (s): 0.73626
CPU time (s): 0.735887
CPU user time (s): 0.688895
CPU system time (s): 0.046992
CPU usage (%): 99.9493
Max. virtual memory (cumulated for all children) (KiB): 30676

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.688895
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7499
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= 8

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-25 16:33:16
IDJOB=2682695
IDBENCH=1448
IDSOLVER=1192
FILE ID=node012/2682695-1277476396
PBS_JOBID= 11190524
Free space on /tmp= 62428 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-46s.smv.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682695-1277476396/watcher-2682695-1277476396 -o /tmp/evaluation-result-2682695-1277476396/solver-2682695-1277476396 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682695-1277476396.opb

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

MD5SUM BENCH= 3549530e67a18968a913c3e0a7729641
RANDOM SEED=1502625504

node012.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		: 3000.258
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	: 6000.51
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		: 3000.258
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:       1786260 kB
Buffers:         46320 kB
Cached:         126160 kB
SwapCached:       9008 kB
Active:          70744 kB
Inactive:       114764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1786260 kB
SwapTotal:     4192956 kB
SwapFree:      4136480 kB
Dirty:            2088 kB
Writeback:           0 kB
AnonPages:       11588 kB
Mapped:           8424 kB
Slab:            65460 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181924 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= 62428 MiB
End job on node012 at 2010-06-25 16:33:17