Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r105-tall-167814481000269.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is DBSingleClientW-PT-d1m08, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r105-tall-167814481000269
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 776K
-rw-r--r-- 1 mcc users 7.1K Feb 26 15:36 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Feb 26 15:36 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 26 15:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Feb 26 15:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Feb 25 15:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Feb 25 15:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 15:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 15:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.3K Feb 26 15:37 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 42K Feb 26 15:37 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.0K Feb 26 15:36 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 68K Feb 26 15:36 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 15:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 432K Mar 5 18:22 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-00
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-01
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-02
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-03
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-04
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-05
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-06
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-07
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-08
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-09
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-10
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-11
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-12
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-13
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-14
FORMULA_NAME DBSingleClientW-PT-d1m08-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1678267592879

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DBSingleClientW-PT-d1m08
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-08 09:26:34] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2023-03-08 09:26:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-08 09:26:34] [INFO ] Load time of PNML (sax parser for PT used): 88 ms
[2023-03-08 09:26:34] [INFO ] Transformed 1440 places.
[2023-03-08 09:26:34] [INFO ] Transformed 672 transitions.
[2023-03-08 09:26:34] [INFO ] Parsed PT model containing 1440 places and 672 transitions and 2688 arcs in 160 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 5 ms.
Deduced a syphon composed of 1093 places in 5 ms
Reduce places removed 1093 places and 0 transitions.
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
// Phase 1: matrix 672 rows 347 cols
[2023-03-08 09:26:34] [INFO ] Computed 6 place invariants in 47 ms
Incomplete random walk after 10000 steps, including 2307 resets, run finished after 137 ms. (steps per millisecond=72 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10000 steps, including 990 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10001 steps, including 949 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10000 steps, including 927 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10000 steps, including 956 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10000 steps, including 911 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 10001 steps, including 966 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 6) seen :0
[2023-03-08 09:26:35] [INFO ] Invariant cache hit.
[2023-03-08 09:26:35] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2023-03-08 09:26:35] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2023-03-08 09:26:35] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:35] [INFO ] [Real]Absence check using state equation in 147 ms returned sat
[2023-03-08 09:26:35] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:35] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:35] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:35] [INFO ] [Nat]Absence check using state equation in 138 ms returned sat
[2023-03-08 09:26:35] [INFO ] State equation strengthened by 418 read => feed constraints.
[2023-03-08 09:26:35] [INFO ] [Nat]Added 418 Read/Feed constraints in 98 ms returned sat
[2023-03-08 09:26:35] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 125 ms.
[2023-03-08 09:26:36] [INFO ] Deduced a trap composed of 42 places in 143 ms of which 4 ms to minimize.
[2023-03-08 09:26:36] [INFO ] Deduced a trap composed of 46 places in 143 ms of which 1 ms to minimize.
[2023-03-08 09:26:36] [INFO ] Deduced a trap composed of 32 places in 134 ms of which 1 ms to minimize.
[2023-03-08 09:26:36] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 590 ms
[2023-03-08 09:26:36] [INFO ] Added : 15 causal constraints over 4 iterations in 1005 ms. Result :sat
Minimization took 164 ms.
[2023-03-08 09:26:37] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2023-03-08 09:26:37] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:37] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:37] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2023-03-08 09:26:37] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:37] [INFO ] [Nat]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:37] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:37] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:37] [INFO ] [Nat]Absence check using state equation in 111 ms returned sat
[2023-03-08 09:26:37] [INFO ] [Nat]Added 418 Read/Feed constraints in 81 ms returned sat
[2023-03-08 09:26:37] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 74 ms.
[2023-03-08 09:26:37] [INFO ] Deduced a trap composed of 32 places in 126 ms of which 1 ms to minimize.
[2023-03-08 09:26:38] [INFO ] Deduced a trap composed of 49 places in 128 ms of which 0 ms to minimize.
[2023-03-08 09:26:38] [INFO ] Deduced a trap composed of 39 places in 147 ms of which 1 ms to minimize.
[2023-03-08 09:26:38] [INFO ] Deduced a trap composed of 29 places in 133 ms of which 1 ms to minimize.
[2023-03-08 09:26:38] [INFO ] Deduced a trap composed of 29 places in 129 ms of which 0 ms to minimize.
[2023-03-08 09:26:38] [INFO ] Deduced a trap composed of 47 places in 128 ms of which 1 ms to minimize.
[2023-03-08 09:26:39] [INFO ] Deduced a trap composed of 47 places in 136 ms of which 1 ms to minimize.
[2023-03-08 09:26:39] [INFO ] Deduced a trap composed of 40 places in 131 ms of which 1 ms to minimize.
[2023-03-08 09:26:39] [INFO ] Trap strengthening (SAT) tested/added 9/8 trap constraints in 1593 ms
[2023-03-08 09:26:39] [INFO ] Added : 26 causal constraints over 6 iterations in 2045 ms. Result :sat
Minimization took 153 ms.
[2023-03-08 09:26:39] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:39] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:39] [INFO ] [Real]Absence check using state equation in 134 ms returned sat
[2023-03-08 09:26:39] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:39] [INFO ] [Nat]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:39] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:39] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:40] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2023-03-08 09:26:40] [INFO ] [Nat]Added 418 Read/Feed constraints in 81 ms returned sat
[2023-03-08 09:26:40] [INFO ] Deduced a trap composed of 100 places in 127 ms of which 0 ms to minimize.
[2023-03-08 09:26:40] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 167 ms
[2023-03-08 09:26:40] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 66 ms.
[2023-03-08 09:26:40] [INFO ] Deduced a trap composed of 31 places in 138 ms of which 1 ms to minimize.
[2023-03-08 09:26:40] [INFO ] Deduced a trap composed of 22 places in 133 ms of which 0 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 23 places in 130 ms of which 0 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 30 places in 128 ms of which 0 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 30 places in 127 ms of which 1 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 30 places in 124 ms of which 1 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 97 places in 116 ms of which 1 ms to minimize.
[2023-03-08 09:26:41] [INFO ] Deduced a trap composed of 26 places in 132 ms of which 0 ms to minimize.
[2023-03-08 09:26:42] [INFO ] Deduced a trap composed of 101 places in 123 ms of which 1 ms to minimize.
[2023-03-08 09:26:42] [INFO ] Deduced a trap composed of 23 places in 126 ms of which 0 ms to minimize.
[2023-03-08 09:26:42] [INFO ] Deduced a trap composed of 30 places in 128 ms of which 0 ms to minimize.
[2023-03-08 09:26:42] [INFO ] Deduced a trap composed of 30 places in 120 ms of which 1 ms to minimize.
[2023-03-08 09:26:42] [INFO ] Deduced a trap composed of 30 places in 130 ms of which 1 ms to minimize.
[2023-03-08 09:26:43] [INFO ] Deduced a trap composed of 23 places in 134 ms of which 0 ms to minimize.
[2023-03-08 09:26:43] [INFO ] Deduced a trap composed of 30 places in 126 ms of which 1 ms to minimize.
[2023-03-08 09:26:43] [INFO ] Deduced a trap composed of 30 places in 125 ms of which 0 ms to minimize.
[2023-03-08 09:26:43] [INFO ] Deduced a trap composed of 50 places in 125 ms of which 0 ms to minimize.
[2023-03-08 09:26:43] [INFO ] Deduced a trap composed of 50 places in 127 ms of which 0 ms to minimize.
[2023-03-08 09:26:44] [INFO ] Deduced a trap composed of 54 places in 129 ms of which 1 ms to minimize.
[2023-03-08 09:26:44] [INFO ] Deduced a trap composed of 29 places in 128 ms of which 1 ms to minimize.
[2023-03-08 09:26:44] [INFO ] Trap strengthening (SAT) tested/added 21/20 trap constraints in 3676 ms
[2023-03-08 09:26:44] [INFO ] Added : 31 causal constraints over 8 iterations in 4202 ms. Result :sat
Minimization took 266 ms.
[2023-03-08 09:26:44] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:44] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:45] [INFO ] [Real]Absence check using state equation in 122 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Real]Added 418 Read/Feed constraints in 83 ms returned sat
[2023-03-08 09:26:45] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 5 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 3 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:45] [INFO ] [Nat]Absence check using state equation in 121 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Nat]Added 418 Read/Feed constraints in 57 ms returned sat
[2023-03-08 09:26:45] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 55 ms.
[2023-03-08 09:26:45] [INFO ] Added : 2 causal constraints over 1 iterations in 133 ms. Result :sat
Minimization took 111 ms.
[2023-03-08 09:26:45] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:45] [INFO ] [Real]Absence check using state equation in 152 ms returned sat
[2023-03-08 09:26:45] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:45] [INFO ] [Nat]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:45] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:46] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2023-03-08 09:26:46] [INFO ] [Nat]Added 418 Read/Feed constraints in 64 ms returned sat
[2023-03-08 09:26:46] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 52 ms.
[2023-03-08 09:26:46] [INFO ] Added : 6 causal constraints over 2 iterations in 176 ms. Result :sat
Minimization took 333 ms.
[2023-03-08 09:26:46] [INFO ] [Real]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:46] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:46] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:46] [INFO ] [Real]Absence check using state equation in 116 ms returned sat
[2023-03-08 09:26:46] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:46] [INFO ] [Nat]Absence check using 2 positive place invariants in 4 ms returned sat
[2023-03-08 09:26:46] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 4 ms returned sat
[2023-03-08 09:26:46] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:47] [INFO ] [Nat]Absence check using state equation in 123 ms returned sat
[2023-03-08 09:26:47] [INFO ] [Nat]Added 418 Read/Feed constraints in 58 ms returned sat
[2023-03-08 09:26:47] [INFO ] Deduced a trap composed of 163 places in 121 ms of which 0 ms to minimize.
[2023-03-08 09:26:47] [INFO ] Deduced a trap composed of 175 places in 118 ms of which 1 ms to minimize.
[2023-03-08 09:26:47] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 318 ms
[2023-03-08 09:26:47] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 52 ms.
[2023-03-08 09:26:47] [INFO ] Added : 4 causal constraints over 1 iterations in 142 ms. Result :sat
Minimization took 91 ms.
Current structural bounds on expressions (after SMT) : [8, 8, 8, 4, 8, 1547] Max seen :[0, 0, 0, 1, 0, 0]
Support contains 6 out of 347 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 347/347 places, 672/672 transitions.
Graph (complete) has 1246 edges and 347 vertex of which 325 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.3 ms
Discarding 22 places :
Also discarding 0 output transitions
Drop transitions removed 8 transitions
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 88 transitions.
Iterating post reduction 0 with 88 rules applied. Total rules applied 89 place count 325 transition count 584
Discarding 93 places :
Symmetric choice reduction at 1 with 93 rule applications. Total rules 182 place count 232 transition count 344
Iterating global reduction 1 with 93 rules applied. Total rules applied 275 place count 232 transition count 344
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 1 with 12 rules applied. Total rules applied 287 place count 232 transition count 332
Discarding 71 places :
Symmetric choice reduction at 2 with 71 rule applications. Total rules 358 place count 161 transition count 261
Iterating global reduction 2 with 71 rules applied. Total rules applied 429 place count 161 transition count 261
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 435 place count 161 transition count 255
Discarding 39 places :
Symmetric choice reduction at 3 with 39 rule applications. Total rules 474 place count 122 transition count 195
Iterating global reduction 3 with 39 rules applied. Total rules applied 513 place count 122 transition count 195
Ensure Unique test removed 22 transitions
Reduce isomorphic transitions removed 22 transitions.
Iterating post reduction 3 with 22 rules applied. Total rules applied 535 place count 122 transition count 173
Discarding 9 places :
Symmetric choice reduction at 4 with 9 rule applications. Total rules 544 place count 113 transition count 158
Iterating global reduction 4 with 9 rules applied. Total rules applied 553 place count 113 transition count 158
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 556 place count 113 transition count 155
Discarding 6 places :
Symmetric choice reduction at 5 with 6 rule applications. Total rules 562 place count 107 transition count 149
Iterating global reduction 5 with 6 rules applied. Total rules applied 568 place count 107 transition count 149
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 570 place count 107 transition count 147
Discarding 5 places :
Symmetric choice reduction at 6 with 5 rule applications. Total rules 575 place count 102 transition count 142
Iterating global reduction 6 with 5 rules applied. Total rules applied 580 place count 102 transition count 142
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 582 place count 100 transition count 134
Iterating global reduction 6 with 2 rules applied. Total rules applied 584 place count 100 transition count 134
Applied a total of 584 rules in 84 ms. Remains 100 /347 variables (removed 247) and now considering 134/672 (removed 538) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 84 ms. Remains : 100/347 places, 134/672 transitions.
// Phase 1: matrix 134 rows 100 cols
[2023-03-08 09:26:48] [INFO ] Computed 2 place invariants in 1 ms
Incomplete random walk after 1000000 steps, including 229444 resets, run finished after 1042 ms. (steps per millisecond=959 ) properties (out of 6) seen :3
Incomplete Best-First random walk after 1000000 steps, including 98083 resets, run finished after 485 ms. (steps per millisecond=2061 ) properties (out of 6) seen :3
Incomplete Best-First random walk after 1000000 steps, including 98500 resets, run finished after 476 ms. (steps per millisecond=2100 ) properties (out of 6) seen :3
Incomplete Best-First random walk after 1000001 steps, including 98183 resets, run finished after 478 ms. (steps per millisecond=2092 ) properties (out of 6) seen :2
Incomplete Best-First random walk after 1000000 steps, including 98179 resets, run finished after 554 ms. (steps per millisecond=1805 ) properties (out of 6) seen :4
Incomplete Best-First random walk after 1000000 steps, including 97916 resets, run finished after 468 ms. (steps per millisecond=2136 ) properties (out of 6) seen :3
Incomplete Best-First random walk after 1000000 steps, including 97848 resets, run finished after 468 ms. (steps per millisecond=2136 ) properties (out of 6) seen :2
[2023-03-08 09:26:52] [INFO ] Invariant cache hit.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using state equation in 22 ms returned unsat
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2023-03-08 09:26:52] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2023-03-08 09:26:52] [INFO ] State equation strengthened by 45 read => feed constraints.
[2023-03-08 09:26:52] [INFO ] [Nat]Added 45 Read/Feed constraints in 8 ms returned sat
[2023-03-08 09:26:52] [INFO ] Computed and/alt/rep : 35/86/35 causal constraints (skipped 98 transitions) in 7 ms.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 46 ms of which 4 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 59 ms
[2023-03-08 09:26:52] [INFO ] Added : 7 causal constraints over 3 iterations in 109 ms. Result :sat
Minimization took 16 ms.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:52] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Nat]Added 45 Read/Feed constraints in 6 ms returned sat
[2023-03-08 09:26:52] [INFO ] Computed and/alt/rep : 35/86/35 causal constraints (skipped 98 transitions) in 7 ms.
[2023-03-08 09:26:52] [INFO ] Added : 5 causal constraints over 1 iterations in 25 ms. Result :sat
Minimization took 17 ms.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2023-03-08 09:26:52] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:52] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Nat]Added 45 Read/Feed constraints in 4 ms returned sat
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 43 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 40 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 37 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 38 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 44 ms of which 1 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 42 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Deduced a trap composed of 13 places in 39 ms of which 0 ms to minimize.
[2023-03-08 09:26:52] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 7 trap constraints in 324 ms
[2023-03-08 09:26:52] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:53] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:53] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:53] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:53] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:53] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2023-03-08 09:26:53] [INFO ] [Nat]Added 45 Read/Feed constraints in 5 ms returned sat
[2023-03-08 09:26:53] [INFO ] Computed and/alt/rep : 35/86/35 causal constraints (skipped 98 transitions) in 7 ms.
[2023-03-08 09:26:53] [INFO ] Deduced a trap composed of 13 places in 48 ms of which 1 ms to minimize.
[2023-03-08 09:26:53] [INFO ] Deduced a trap composed of 14 places in 43 ms of which 0 ms to minimize.
[2023-03-08 09:26:53] [INFO ] Deduced a trap composed of 14 places in 38 ms of which 0 ms to minimize.
[2023-03-08 09:26:53] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 153 ms
[2023-03-08 09:26:53] [INFO ] Added : 11 causal constraints over 6 iterations in 230 ms. Result :sat
Minimization took 50 ms.
[2023-03-08 09:26:53] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:53] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:53] [INFO ] [Real]Absence check using state equation in 20 ms returned unsat
Current structural bounds on expressions (after SMT) : [1, 8, 8, 3, 8, 1] Max seen :[1, 0, 0, 3, 0, 1]
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-10 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 3 out of 100 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 100/100 places, 134/134 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 98 transition count 131
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 98 transition count 131
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 5 place count 97 transition count 130
Iterating global reduction 0 with 1 rules applied. Total rules applied 6 place count 97 transition count 130
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 9 place count 97 transition count 127
Applied a total of 9 rules in 13 ms. Remains 97 /100 variables (removed 3) and now considering 127/134 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 97/100 places, 127/134 transitions.
// Phase 1: matrix 127 rows 97 cols
[2023-03-08 09:26:53] [INFO ] Computed 2 place invariants in 1 ms
Incomplete random walk after 1000000 steps, including 229061 resets, run finished after 892 ms. (steps per millisecond=1121 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000000 steps, including 98507 resets, run finished after 431 ms. (steps per millisecond=2320 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000000 steps, including 98206 resets, run finished after 433 ms. (steps per millisecond=2309 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 1000000 steps, including 98128 resets, run finished after 435 ms. (steps per millisecond=2298 ) properties (out of 3) seen :0
[2023-03-08 09:26:55] [INFO ] Invariant cache hit.
[2023-03-08 09:26:55] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:55] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2023-03-08 09:26:55] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:55] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:55] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2023-03-08 09:26:55] [INFO ] State equation strengthened by 39 read => feed constraints.
[2023-03-08 09:26:55] [INFO ] [Nat]Added 39 Read/Feed constraints in 4 ms returned sat
[2023-03-08 09:26:55] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 7 ms.
[2023-03-08 09:26:55] [INFO ] Added : 6 causal constraints over 2 iterations in 37 ms. Result :sat
Minimization took 15 ms.
[2023-03-08 09:26:55] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:55] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:55] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:55] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:55] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:55] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:55] [INFO ] [Nat]Added 39 Read/Feed constraints in 6 ms returned sat
[2023-03-08 09:26:55] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 7 ms.
[2023-03-08 09:26:55] [INFO ] Added : 6 causal constraints over 2 iterations in 31 ms. Result :sat
Minimization took 18 ms.
[2023-03-08 09:26:56] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:56] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:56] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:56] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:56] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:56] [INFO ] [Nat]Added 39 Read/Feed constraints in 5 ms returned sat
[2023-03-08 09:26:56] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 6 ms.
[2023-03-08 09:26:56] [INFO ] Deduced a trap composed of 16 places in 43 ms of which 1 ms to minimize.
[2023-03-08 09:26:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 55 ms
[2023-03-08 09:26:56] [INFO ] Added : 11 causal constraints over 5 iterations in 114 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : [8, 8, 8] Max seen :[0, 0, 0]
Support contains 3 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 127/127 transitions.
Applied a total of 0 rules in 7 ms. Remains 97 /97 variables (removed 0) and now considering 127/127 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 97/97 places, 127/127 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 127/127 transitions.
Applied a total of 0 rules in 7 ms. Remains 97 /97 variables (removed 0) and now considering 127/127 (removed 0) transitions.
[2023-03-08 09:26:56] [INFO ] Invariant cache hit.
[2023-03-08 09:26:56] [INFO ] Implicit Places using invariants in 57 ms returned []
[2023-03-08 09:26:56] [INFO ] Invariant cache hit.
[2023-03-08 09:26:56] [INFO ] State equation strengthened by 39 read => feed constraints.
[2023-03-08 09:26:56] [INFO ] Implicit Places using invariants and state equation in 133 ms returned []
Implicit Place search using SMT with State Equation took 193 ms to find 0 implicit places.
[2023-03-08 09:26:56] [INFO ] Redundant transitions in 3 ms returned []
[2023-03-08 09:26:56] [INFO ] Invariant cache hit.
[2023-03-08 09:26:56] [INFO ] Dead Transitions using invariants and state equation in 62 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 276 ms. Remains : 97/97 places, 127/127 transitions.
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-03
[2023-03-08 09:26:56] [INFO ] Invariant cache hit.
Incomplete random walk after 10000 steps, including 2263 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 977 resets, run finished after 7 ms. (steps per millisecond=1428 ) properties (out of 1) seen :0
[2023-03-08 09:26:56] [INFO ] Invariant cache hit.
[2023-03-08 09:26:56] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:56] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:56] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:56] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:56] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:56] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:56] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:56] [INFO ] State equation strengthened by 39 read => feed constraints.
[2023-03-08 09:26:56] [INFO ] [Nat]Added 39 Read/Feed constraints in 5 ms returned sat
[2023-03-08 09:26:56] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 9 ms.
[2023-03-08 09:26:56] [INFO ] Added : 6 causal constraints over 2 iterations in 37 ms. Result :sat
Minimization took 15 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 127/127 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 95 transition count 124
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 95 transition count 124
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 93 transition count 122
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 93 transition count 122
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 10 place count 91 transition count 116
Iterating global reduction 0 with 2 rules applied. Total rules applied 12 place count 91 transition count 116
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 13 place count 91 transition count 115
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 15 place count 89 transition count 113
Iterating global reduction 1 with 2 rules applied. Total rules applied 17 place count 89 transition count 113
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 19 place count 87 transition count 111
Iterating global reduction 1 with 2 rules applied. Total rules applied 21 place count 87 transition count 111
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 24 place count 87 transition count 108
Applied a total of 24 rules in 17 ms. Remains 87 /97 variables (removed 10) and now considering 108/127 (removed 19) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 87/97 places, 108/127 transitions.
// Phase 1: matrix 108 rows 87 cols
[2023-03-08 09:26:56] [INFO ] Computed 2 place invariants in 1 ms
Incomplete random walk after 1000000 steps, including 229942 resets, run finished after 792 ms. (steps per millisecond=1262 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 1000001 steps, including 98323 resets, run finished after 387 ms. (steps per millisecond=2583 ) properties (out of 1) seen :0
[2023-03-08 09:26:58] [INFO ] Invariant cache hit.
[2023-03-08 09:26:58] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:58] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2023-03-08 09:26:58] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:58] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:58] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:58] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:58] [INFO ] State equation strengthened by 33 read => feed constraints.
[2023-03-08 09:26:58] [INFO ] [Nat]Added 33 Read/Feed constraints in 5 ms returned sat
[2023-03-08 09:26:58] [INFO ] Computed and/alt/rep : 31/67/31 causal constraints (skipped 76 transitions) in 6 ms.
[2023-03-08 09:26:58] [INFO ] Added : 9 causal constraints over 2 iterations in 29 ms. Result :sat
Minimization took 17 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 108/108 transitions.
Applied a total of 0 rules in 3 ms. Remains 87 /87 variables (removed 0) and now considering 108/108 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 87/87 places, 108/108 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 108/108 transitions.
Applied a total of 0 rules in 3 ms. Remains 87 /87 variables (removed 0) and now considering 108/108 (removed 0) transitions.
[2023-03-08 09:26:58] [INFO ] Invariant cache hit.
[2023-03-08 09:26:58] [INFO ] Implicit Places using invariants in 52 ms returned []
[2023-03-08 09:26:58] [INFO ] Invariant cache hit.
[2023-03-08 09:26:58] [INFO ] State equation strengthened by 33 read => feed constraints.
[2023-03-08 09:26:58] [INFO ] Implicit Places using invariants and state equation in 111 ms returned []
Implicit Place search using SMT with State Equation took 164 ms to find 0 implicit places.
[2023-03-08 09:26:58] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-08 09:26:58] [INFO ] Invariant cache hit.
[2023-03-08 09:26:58] [INFO ] Dead Transitions using invariants and state equation in 51 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 232 ms. Remains : 87/87 places, 108/108 transitions.
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-03 in 1837 ms.
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-07
// Phase 1: matrix 127 rows 97 cols
[2023-03-08 09:26:58] [INFO ] Computed 2 place invariants in 1 ms
Incomplete random walk after 10000 steps, including 2270 resets, run finished after 11 ms. (steps per millisecond=909 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 902 resets, run finished after 5 ms. (steps per millisecond=2000 ) properties (out of 1) seen :0
[2023-03-08 09:26:58] [INFO ] Invariant cache hit.
[2023-03-08 09:26:58] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:58] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2023-03-08 09:26:58] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:58] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:58] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:58] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:26:58] [INFO ] State equation strengthened by 39 read => feed constraints.
[2023-03-08 09:26:58] [INFO ] [Nat]Added 39 Read/Feed constraints in 6 ms returned sat
[2023-03-08 09:26:58] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 7 ms.
[2023-03-08 09:26:58] [INFO ] Added : 6 causal constraints over 2 iterations in 29 ms. Result :sat
Minimization took 21 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 127/127 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 95 transition count 124
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 95 transition count 124
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 93 transition count 122
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 93 transition count 122
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 10 place count 91 transition count 116
Iterating global reduction 0 with 2 rules applied. Total rules applied 12 place count 91 transition count 116
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 13 place count 91 transition count 115
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 15 place count 89 transition count 113
Iterating global reduction 1 with 2 rules applied. Total rules applied 17 place count 89 transition count 113
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 19 place count 87 transition count 111
Iterating global reduction 1 with 2 rules applied. Total rules applied 21 place count 87 transition count 111
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 23 place count 87 transition count 109
Applied a total of 23 rules in 27 ms. Remains 87 /97 variables (removed 10) and now considering 109/127 (removed 18) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 87/97 places, 109/127 transitions.
// Phase 1: matrix 109 rows 87 cols
[2023-03-08 09:26:58] [INFO ] Computed 2 place invariants in 2 ms
Incomplete random walk after 1000000 steps, including 229887 resets, run finished after 789 ms. (steps per millisecond=1267 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 1000001 steps, including 98719 resets, run finished after 387 ms. (steps per millisecond=2583 ) properties (out of 1) seen :0
[2023-03-08 09:26:59] [INFO ] Invariant cache hit.
[2023-03-08 09:26:59] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:26:59] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:59] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2023-03-08 09:26:59] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:26:59] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:26:59] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:26:59] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2023-03-08 09:26:59] [INFO ] State equation strengthened by 33 read => feed constraints.
[2023-03-08 09:26:59] [INFO ] [Nat]Added 33 Read/Feed constraints in 4 ms returned sat
[2023-03-08 09:26:59] [INFO ] Computed and/alt/rep : 31/70/31 causal constraints (skipped 77 transitions) in 6 ms.
[2023-03-08 09:27:00] [INFO ] Added : 7 causal constraints over 3 iterations in 29 ms. Result :sat
Minimization took 14 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 109/109 transitions.
Applied a total of 0 rules in 4 ms. Remains 87 /87 variables (removed 0) and now considering 109/109 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 87/87 places, 109/109 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 109/109 transitions.
Applied a total of 0 rules in 4 ms. Remains 87 /87 variables (removed 0) and now considering 109/109 (removed 0) transitions.
[2023-03-08 09:27:00] [INFO ] Invariant cache hit.
[2023-03-08 09:27:00] [INFO ] Implicit Places using invariants in 52 ms returned []
[2023-03-08 09:27:00] [INFO ] Invariant cache hit.
[2023-03-08 09:27:00] [INFO ] State equation strengthened by 33 read => feed constraints.
[2023-03-08 09:27:00] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 163 ms to find 0 implicit places.
[2023-03-08 09:27:00] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-08 09:27:00] [INFO ] Invariant cache hit.
[2023-03-08 09:27:00] [INFO ] Dead Transitions using invariants and state equation in 53 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 228 ms. Remains : 87/87 places, 109/109 transitions.
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-07 in 1818 ms.
Starting property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-11
// Phase 1: matrix 127 rows 97 cols
[2023-03-08 09:27:00] [INFO ] Computed 2 place invariants in 1 ms
Incomplete random walk after 10000 steps, including 2288 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 1021 resets, run finished after 6 ms. (steps per millisecond=1666 ) properties (out of 1) seen :0
[2023-03-08 09:27:00] [INFO ] Invariant cache hit.
[2023-03-08 09:27:00] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:27:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:27:00] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2023-03-08 09:27:00] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:27:00] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:27:00] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:27:00] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2023-03-08 09:27:00] [INFO ] State equation strengthened by 39 read => feed constraints.
[2023-03-08 09:27:00] [INFO ] [Nat]Added 39 Read/Feed constraints in 6 ms returned sat
[2023-03-08 09:27:00] [INFO ] Computed and/alt/rep : 35/84/35 causal constraints (skipped 91 transitions) in 6 ms.
[2023-03-08 09:27:00] [INFO ] Deduced a trap composed of 16 places in 44 ms of which 1 ms to minimize.
[2023-03-08 09:27:00] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 57 ms
[2023-03-08 09:27:00] [INFO ] Added : 11 causal constraints over 5 iterations in 113 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 127/127 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 95 transition count 123
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 95 transition count 123
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 93 transition count 121
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 93 transition count 121
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 10 place count 91 transition count 117
Iterating global reduction 0 with 2 rules applied. Total rules applied 12 place count 91 transition count 117
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 14 place count 91 transition count 115
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 16 place count 89 transition count 113
Iterating global reduction 1 with 2 rules applied. Total rules applied 18 place count 89 transition count 113
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 20 place count 87 transition count 111
Iterating global reduction 1 with 2 rules applied. Total rules applied 22 place count 87 transition count 111
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 25 place count 87 transition count 108
Applied a total of 25 rules in 13 ms. Remains 87 /97 variables (removed 10) and now considering 108/127 (removed 19) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 87/97 places, 108/127 transitions.
// Phase 1: matrix 108 rows 87 cols
[2023-03-08 09:27:00] [INFO ] Computed 2 place invariants in 2 ms
Incomplete random walk after 1000000 steps, including 229593 resets, run finished after 804 ms. (steps per millisecond=1243 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 1000000 steps, including 98100 resets, run finished after 390 ms. (steps per millisecond=2564 ) properties (out of 1) seen :0
[2023-03-08 09:27:01] [INFO ] Invariant cache hit.
[2023-03-08 09:27:01] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 1 ms returned sat
[2023-03-08 09:27:01] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-08 09:27:01] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2023-03-08 09:27:01] [INFO ] Solution in real domain found non-integer solution.
[2023-03-08 09:27:01] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2023-03-08 09:27:01] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-08 09:27:01] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2023-03-08 09:27:01] [INFO ] State equation strengthened by 31 read => feed constraints.
[2023-03-08 09:27:01] [INFO ] [Nat]Added 31 Read/Feed constraints in 6 ms returned sat
[2023-03-08 09:27:01] [INFO ] Computed and/alt/rep : 31/69/31 causal constraints (skipped 76 transitions) in 8 ms.
[2023-03-08 09:27:02] [INFO ] Deduced a trap composed of 16 places in 42 ms of which 0 ms to minimize.
[2023-03-08 09:27:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 52 ms
[2023-03-08 09:27:02] [INFO ] Added : 9 causal constraints over 3 iterations in 98 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : [-1] Max seen :[0]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 108/108 transitions.
Applied a total of 0 rules in 3 ms. Remains 87 /87 variables (removed 0) and now considering 108/108 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 87/87 places, 108/108 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 108/108 transitions.
Applied a total of 0 rules in 4 ms. Remains 87 /87 variables (removed 0) and now considering 108/108 (removed 0) transitions.
[2023-03-08 09:27:02] [INFO ] Invariant cache hit.
[2023-03-08 09:27:02] [INFO ] Implicit Places using invariants in 60 ms returned []
[2023-03-08 09:27:02] [INFO ] Invariant cache hit.
[2023-03-08 09:27:02] [INFO ] State equation strengthened by 31 read => feed constraints.
[2023-03-08 09:27:02] [INFO ] Implicit Places using invariants and state equation in 110 ms returned []
Implicit Place search using SMT with State Equation took 171 ms to find 0 implicit places.
[2023-03-08 09:27:02] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-08 09:27:02] [INFO ] Invariant cache hit.
[2023-03-08 09:27:02] [INFO ] Dead Transitions using invariants and state equation in 54 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 244 ms. Remains : 87/87 places, 108/108 transitions.
Ending property specific reduction for DBSingleClientW-PT-d1m08-UpperBounds-11 in 2103 ms.
[2023-03-08 09:27:02] [INFO ] Flatten gal took : 37 ms
[2023-03-08 09:27:02] [INFO ] Export to MCC of 3 properties in file /home/mcc/execution/UpperBounds.sr.xml took 1 ms.
[2023-03-08 09:27:02] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 97 places, 127 transitions and 502 arcs took 1 ms.
Total runtime 28241 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --maxsum=/tmp/792/ub_0_ --maxsum=/tmp/792/ub_1_ --maxsum=/tmp/792/ub_2_
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-03 1 TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-07 1 TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA DBSingleClientW-PT-d1m08-UpperBounds-11 5 TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN

BK_STOP 1678267626840

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -timeout 360 -rebuildPNML
mcc2023
ub formula name DBSingleClientW-PT-d1m08-UpperBounds-03
ub formula formula --maxsum=/tmp/792/ub_0_
ub formula name DBSingleClientW-PT-d1m08-UpperBounds-07
ub formula formula --maxsum=/tmp/792/ub_1_
ub formula name DBSingleClientW-PT-d1m08-UpperBounds-11
ub formula formula --maxsum=/tmp/792/ub_2_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 97 places, 127 transitions and 502 arcs
pnml2lts-sym: Petri net DBSingleClientW_PT_d1m08 analyzed
pnml2lts-sym: There are no safe places
pnml2lts-sym: Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 127->121 groups
pnml2lts-sym: Regrouping took 0.020 real 0.020 user 0.000 sys
pnml2lts-sym: state vector length is 97; there are 121 groups
pnml2lts-sym: Computing maximum sum over 1 state variables.
pnml2lts-sym: Computing maximum sum over 1 state variables.
pnml2lts-sym: Computing maximum sum over 1 state variables.
pnml2lts-sym: Creating a multi-core ListDD domain.
pnml2lts-sym: Sylvan allocates 15.000 GB virtual memory for nodes table and operation cache.
pnml2lts-sym: Initial nodes table and operation cache requires 60.00 MB.
pnml2lts-sym: Using GBgetTransitionsShortR2W as next-state function
pnml2lts-sym: got initial state
pnml2lts-sym: Exploration took 589174 group checks and 0 next state calls
pnml2lts-sym: reachability took 3.130 real 12.510 user 0.020 sys
pnml2lts-sym: counting visited states...
pnml2lts-sym: counting took 0.010 real 0.020 user 0.000 sys
pnml2lts-sym: state space has 64925266 states, 33337 nodes
pnml2lts-sym: Maximum sum of /tmp/792/ub_0_ is: 1
pnml2lts-sym: Maximum sum of /tmp/792/ub_1_ is: 1
pnml2lts-sym: Maximum sum of /tmp/792/ub_2_ is: 5
pnml2lts-sym: group_next: 2382 nodes total
pnml2lts-sym: group_explored: 3157 nodes, 3710 short vectors total
pnml2lts-sym: max token count: 8

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="DBSingleClientW-PT-d1m08"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="ltsminxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5348"
echo " Executing tool ltsminxred"
echo " Input is DBSingleClientW-PT-d1m08, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r105-tall-167814481000269"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d1m08.tgz
mv DBSingleClientW-PT-d1m08 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;