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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Nameweb/uclid_pb_benchmarks/normalized-blast-tlan2.ucl.opb
MD5SUM7100a312d793a62875e04da08d79c5f4
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
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
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.391939
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

Trace number 7838

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-20 14:37:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5024 boxname=wulflinc1 idbench=336 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  7100a312d793a62875e04da08d79c5f4  /oldhome/oroussel/tmp/wulflinc1/normalized-blast-tlan2.ucl.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5024
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        823408 kB
Buffers:         33412 kB
Cached:         148552 kB
SwapCached:       1160 kB
Active:          75820 kB
Inactive:       108776 kB
HighTotal:      131008 kB
HighFree:         6944 kB
LowTotal:       903652 kB
LowFree:        816464 kB
SwapTotal:     2097136 kB
SwapFree:      2095268 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            21060 kB
Committed_AS:    92624 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 14:37:48 (client local time) WITH STATUS 20 IN 0.446931 SECONDS
stats: 5024 7 0.446931 20

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c starting to Solve
c #variables read: 2221 - #constraints read: 3049
c total time              : 0.43 s
s UNSATISFIABLE

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/6606/stat): 6606 (Pueblo) R 6605 6606 10120 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1744231311 167936 3 4294967295 134512640 134578447 3221221792 3221221792 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/6606/statm): 42 10 40 18 0 24 0
[pid=6606] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/tls/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/i686/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libstdc++.so.5
open syscall for file /usr/local/globus-2.4.3/lib/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file /usr/local/intel-8.0-20031016/lib/libm.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libm.so.6
open syscall for file /usr/local/globus-2.4.3/lib/libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file /usr/local/intel-8.0-20031016/lib/libgcc_s.so.1
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libgcc_s.so.1
open syscall for file /usr/local/globus-2.4.3/lib/libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file /usr/local/intel-8.0-20031016/lib/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
One traced child (pid=6606) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 0.469389
CPU time (s): 0.446931
CPU user time (s): 0.430934
CPU system time (s): 0.015997
CPU usage (%): 95.2155
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !