Trace number 2682725

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 1.89271 1.89248

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-25s.smv.opb
MD5SUMd7f2e5810238fdfe52a90b4b556d26aa
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 benchmark0.097984
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables5072
Total number of constraints12829
Number of constraints which are clauses11721
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1108
Minimum length of a constraint1
Maximum length of a constraint15
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 165
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 546
Number of bits of the biggest sum of numbers10
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
0.29/0.31	c constraints 1108/0 clauses 8405/0 units 1077
0.29/0.31	c vars 5072
1.39/1.44	c 1.3358 93.4258 19 475
1.79/1.88	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-2682725-1277476563/watcher-2682725-1277476563 -o /tmp/evaluation-result-2682725-1277476563/solver-2682725-1277476563 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682725-1277476563.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 0.94 0.60 3/107 23648
/proc/meminfo: memFree=1748296/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=2136 CPUtime=0
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 246 0 0 0 0 0 0 0 25 0 1 0 121312065 2187264 166 1992294400 134512640 136421960 4289509136 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23648/statm: 534 166 144 467 0 65 0

[startup+0.0858899 s]
/proc/loadavg: 0.99 0.94 0.60 3/107 23648
/proc/meminfo: memFree=1748296/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=2400 CPUtime=0.08
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 321 0 0 0 8 0 0 0 25 0 1 0 121312065 2457600 241 1992294400 134512640 136421960 4289509136 18446744073709551615 135372694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23648/statm: 600 241 144 467 0 131 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2400

[startup+0.10089 s]
/proc/loadavg: 0.99 0.94 0.60 3/107 23648
/proc/meminfo: memFree=1748296/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=2532 CPUtime=0.09
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 331 0 0 0 9 0 0 0 25 0 1 0 121312065 2592768 251 1992294400 134512640 136421960 4289509136 18446744073709551615 135372747 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23648/statm: 633 251 144 467 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

[startup+0.300907 s]
/proc/loadavg: 0.99 0.94 0.60 3/107 23648
/proc/meminfo: memFree=1748296/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=3720 CPUtime=0.29
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 661 0 0 0 29 0 0 0 25 0 1 0 121312065 3809280 581 1992294400 134512640 136421960 4289509136 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23648/statm: 930 581 146 467 0 461 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3720

[startup+0.700944 s]
/proc/loadavg: 0.99 0.94 0.60 3/107 23648
/proc/meminfo: memFree=1748296/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=37468 CPUtime=0.69
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 9334 0 0 0 64 5 0 0 25 0 1 0 121312065 38367232 8815 1992294400 134512640 136421960 4289509136 18446744073709551615 134711291 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23648/statm: 9367 8816 193 467 0 8898 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 37468

[startup+1.50102 s]
/proc/loadavg: 0.99 0.94 0.60 2/108 23649
/proc/meminfo: memFree=1694844/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=94104 CPUtime=1.49
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 24456 0 0 0 138 11 0 0 25 0 1 0 121312065 96362496 22406 1992294400 134512640 136421960 4289509136 18446744073709551615 134710213 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23648/statm: 23526 22406 236 467 0 23057 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 94104

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

[startup+1.70103 s]
/proc/loadavg: 0.99 0.94 0.60 2/108 23649
/proc/meminfo: memFree=1694844/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=89672 CPUtime=1.69
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 24456 0 0 0 158 11 0 0 25 0 1 0 121312065 91824128 21553 1992294400 134512640 136421960 4289509136 18446744073709551615 134701442 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23648/statm: 22418 21553 236 467 0 21949 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 89672

[startup+1.80104 s]
/proc/loadavg: 0.99 0.94 0.60 2/108 23649
/proc/meminfo: memFree=1694844/2059040 swapFree=4139780/4192956
[pid=23648] ppid=23646 vsize=89672 CPUtime=1.79
/proc/23648/stat : 23648 (pbct) R 23646 23648 23356 0 -1 4202496 24456 0 0 0 168 11 0 0 25 0 1 0 121312065 91824128 21553 1992294400 134512640 136421960 4289509136 18446744073709551615 134701442 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23648/statm: 22418 21553 236 467 0 21949 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 89672

Child status: 0
Real time (s): 1.89248
CPU time (s): 1.89271
CPU user time (s): 1.76873
CPU system time (s): 0.123981
CPU usage (%): 100.012
Max. virtual memory (cumulated for all children) (KiB): 94104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.76873
system time used= 0.123981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24457
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 0.003999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-25 16:36:03
IDJOB=2682725
IDBENCH=1484
IDSOLVER=1192
FILE ID=node025/2682725-1277476563
PBS_JOBID= 11190517
Free space on /tmp= 62308 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-25s.smv.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682725-1277476563/watcher-2682725-1277476563 -o /tmp/evaluation-result-2682725-1277476563/solver-2682725-1277476563 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682725-1277476563.opb

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

MD5SUM BENCH= d7f2e5810238fdfe52a90b4b556d26aa
RANDOM SEED=1306549706

node025.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1748700 kB
Buffers:         43916 kB
Cached:         161704 kB
SwapCached:       5912 kB
Active:          74848 kB
Inactive:       144300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1748700 kB
SwapTotal:     4192956 kB
SwapFree:      4139780 kB
Dirty:            2412 kB
Writeback:           0 kB
AnonPages:       12192 kB
Mapped:          11852 kB
Slab:            69116 kB
PageTables:       4276 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183756 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= 62304 MiB
End job on node025 at 2010-06-25 16:36:05