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.r266-smll-167863540900390.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool marciexred
Input is ParamProductionCell-PT-3, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r266-smll-167863540900390
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 616K
-rw-r--r-- 1 mcc users 8.0K Feb 26 17:15 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Feb 26 17:15 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Feb 26 17:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Feb 26 17:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.8K Feb 25 16:29 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Feb 25 16:29 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Feb 25 16:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.9K Feb 26 17:17 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 81K Feb 26 17:17 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 26 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 84K Feb 26 17:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 16:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Feb 25 16:29 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 2 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 174K Mar 5 18:23 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-00
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-01
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-02
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-03
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-04
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-05
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-06
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-07
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-08
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-09
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-10
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-11
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-12
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-13
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-14
FORMULA_NAME ParamProductionCell-PT-3-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1679040880747

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=marciexred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ParamProductionCell-PT-3
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-17 08:14:43] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-17 08:14:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 08:14:43] [INFO ] Load time of PNML (sax parser for PT used): 145 ms
[2023-03-17 08:14:43] [INFO ] Transformed 231 places.
[2023-03-17 08:14:43] [INFO ] Transformed 202 transitions.
[2023-03-17 08:14:43] [INFO ] Found NUPN structural information;
[2023-03-17 08:14:44] [INFO ] Parsed PT model containing 231 places and 202 transitions and 846 arcs in 293 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 32 ms.
Working with output stream class java.io.PrintStream
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 2 resets, run finished after 805 ms. (steps per millisecond=12 ) properties (out of 12) seen :8
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 198 ms. (steps per millisecond=50 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 108 ms. (steps per millisecond=92 ) properties (out of 4) seen :1
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 100 ms. (steps per millisecond=100 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
// Phase 1: matrix 202 rows 231 cols
[2023-03-17 08:14:45] [INFO ] Computed 59 place invariants in 25 ms
[2023-03-17 08:14:45] [INFO ] After 342ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:3
[2023-03-17 08:14:45] [INFO ] [Nat]Absence check using 35 positive place invariants in 26 ms returned sat
[2023-03-17 08:14:46] [INFO ] [Nat]Absence check using 35 positive and 24 generalized place invariants in 24 ms returned sat
[2023-03-17 08:14:46] [INFO ] After 227ms SMT Verify possible using all constraints in natural domain returned unsat :3 sat :0
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-02 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 3 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 0 ms.
All properties solved without resorting to model-checking.
Total runtime 2386 ms.
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=ReachabilityCardinality.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Net: ParamProductionCell_PT_3
(NrP: 231 NrTr: 202 NrArc: 846)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.007sec

net check time: 0m 0.000sec

init dd package: 0m 3.396sec


RS generation: 0m 0.878sec


-> reachability set: #nodes 12807 (1.3e+04) #states 1,465,206 (6)



starting MCC model checker
--------------------------

checking: AG [~ [1<=PU_in]]
normalized: ~ [E [true U 1<=PU_in]]

abstracting: (1<=PU_in)
states: 43,281 (4)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-00 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.708sec

checking: AG [belt1_start<=1]
normalized: ~ [E [true U ~ [belt1_start<=1]]]

abstracting: (belt1_start<=1)
states: 1,465,206 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-05 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.005sec

checking: AG [A2L_in<=crane_store_free]
normalized: ~ [E [true U ~ [A2L_in<=crane_store_free]]]

abstracting: (A2L_in<=crane_store_free)
states: 1,453,490 (6)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-01 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.433sec

checking: AG [A1L_rot1_rs<=A1L_rot3_run]
normalized: ~ [E [true U ~ [A1L_rot1_rs<=A1L_rot3_run]]]

abstracting: (A1L_rot1_rs<=A1L_rot3_run)
states: 1,463,724 (6)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-06 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.227sec

checking: AG [press_down<=crane_lift]
normalized: ~ [E [true U ~ [press_down<=crane_lift]]]

abstracting: (press_down<=crane_lift)
states: 1,356,558 (6)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-12 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.108sec

checking: EF [[[[~ [[~ [1<=ch_A2D_free] | crane_store_free<=0]] & [table_ready_for_loading<=A2L_rot3_rs | ~ [forge_run<=1]]] & ~ [A1U_unloadet<=0]] & 1<=A1U_rot3_in]]
normalized: E [true U [[~ [A1U_unloadet<=0] & [[table_ready_for_loading<=A2L_rot3_rs | ~ [forge_run<=1]] & ~ [[~ [1<=ch_A2D_free] | crane_store_free<=0]]]] & 1<=A1U_rot3_in]]

abstracting: (1<=A1U_rot3_in)
states: 5,579 (3)
abstracting: (crane_store_free<=0)
states: 1,241,298 (6)
abstracting: (1<=ch_A2D_free)
states: 270,906 (5)
abstracting: (forge_run<=1)
states: 1,465,206 (6)
abstracting: (table_ready_for_loading<=A2L_rot3_rs)
states: 1,270,839 (6)
abstracting: (A1U_unloadet<=0)
states: 1,457,708 (6)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-07 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.048sec

checking: EF [~ [[A2L_ext_rs<=TL_out | ~ [[~ [[[~ [1<=A1U_ext_run] | [1<=arm2_stop & [arm1_magnet_on<=1 | A1U_ext_run<=1]]] & ~ [1<=arm2_storing]]] | 1<=arm1_storing]]]]]
normalized: E [true U ~ [[A2L_ext_rs<=TL_out | ~ [[1<=arm1_storing | ~ [[~ [1<=arm2_storing] & [[1<=arm2_stop & [arm1_magnet_on<=1 | A1U_ext_run<=1]] | ~ [1<=A1U_ext_run]]]]]]]]]

abstracting: (1<=A1U_ext_run)
states: 14,996 (4)
abstracting: (A1U_ext_run<=1)
states: 1,465,206 (6)
abstracting: (arm1_magnet_on<=1)
states: 1,465,206 (6)
abstracting: (1<=arm2_stop)
states: 1,305,138 (6)
abstracting: (1<=arm2_storing)
states: 142,341 (5)
abstracting: (1<=arm1_storing)
states: 310,961 (5)
abstracting: (A2L_ext_rs<=TL_out)
states: 1,458,621 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-14 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.131sec

checking: AG [[[1<=TL_lower_rs | CU_lower_run<=1] | [belt2_light_barrier_false<=A1L_rot2_rs & ~ [[[A2L_rotated<=0 | [TU_rot_rs<=0 | ~ [arm1_forward<=belt2_light_barrier_false]]] | ~ [A1L_rot1_rs<=0]]]]]]
normalized: ~ [E [true U ~ [[[belt2_light_barrier_false<=A1L_rot2_rs & ~ [[~ [A1L_rot1_rs<=0] | [A2L_rotated<=0 | [TU_rot_rs<=0 | ~ [arm1_forward<=belt2_light_barrier_false]]]]]] | [1<=TL_lower_rs | CU_lower_run<=1]]]]]

abstracting: (CU_lower_run<=1)
states: 1,465,206 (6)
abstracting: (1<=TL_lower_rs)
states: 89,458 (4)
abstracting: (arm1_forward<=belt2_light_barrier_false)
states: 1,460,226 (6)
abstracting: (TU_rot_rs<=0)
states: 1,437,958 (6)
abstracting: (A2L_rotated<=0)
states: 1,458,149 (6)
abstracting: (A1L_rot1_rs<=0)
states: 1,463,724 (6)
abstracting: (belt2_light_barrier_false<=A1L_rot2_rs)
states: 159,042 (5)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-03 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.072sec

checking: AG [[[~ [1<=press_ready_for_unloading] & ~ [[1<=A2U_rot3_in & [PL_lower_rs<=0 | ~ [[[arm1_storing<=1 & crane_to_belt1<=0] | [A1L_loaded<=0 | PL_lower_rs<=TU_out]]]]]]] | A2L_ext_run<=1]]
normalized: ~ [E [true U ~ [[A2L_ext_run<=1 | [~ [[1<=A2U_rot3_in & [PL_lower_rs<=0 | ~ [[[A1L_loaded<=0 | PL_lower_rs<=TU_out] | [arm1_storing<=1 & crane_to_belt1<=0]]]]]] & ~ [1<=press_ready_for_unloading]]]]]]

abstracting: (1<=press_ready_for_unloading)
states: 299,475 (5)
abstracting: (crane_to_belt1<=0)
states: 1,328,352 (6)
abstracting: (arm1_storing<=1)
states: 1,465,206 (6)
abstracting: (PL_lower_rs<=TU_out)
states: 1,375,811 (6)
abstracting: (A1L_loaded<=0)
states: 1,460,084 (6)
abstracting: (PL_lower_rs<=0)
states: 1,373,565 (6)
abstracting: (1<=A2U_rot3_in)
states: 13,208 (4)
abstracting: (A2L_ext_run<=1)
states: 1,465,206 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-04 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.033sec

checking: EF [~ [[[1<=table_ready_for_loading | [~ [[ch_FT_full<=A2L_rot2_rs & 1<=PU_in]] | [A2U_ext_rs<=A2L_ret_rs & arm1_pick_up_angle<=1]]] | ~ [[1<=A1L_out | 1<=FB_trans_rs]]]]]
normalized: E [true U ~ [[~ [[1<=A1L_out | 1<=FB_trans_rs]] | [1<=table_ready_for_loading | [[A2U_ext_rs<=A2L_ret_rs & arm1_pick_up_angle<=1] | ~ [[ch_FT_full<=A2L_rot2_rs & 1<=PU_in]]]]]]]

abstracting: (1<=PU_in)
states: 43,281 (4)
abstracting: (ch_FT_full<=A2L_rot2_rs)
states: 1,438,076 (6)
abstracting: (arm1_pick_up_angle<=1)
states: 1,465,206 (6)
abstracting: (A2U_ext_rs<=A2L_ret_rs)
states: 1,445,585 (6)
abstracting: (1<=table_ready_for_loading)
states: 195,366 (5)
abstracting: (1<=FB_trans_rs)
states: 8,740 (3)
abstracting: (1<=A1L_out)
states: 5,122 (3)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-10 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.036sec

checking: EF [~ [[[A2U_rot3_in<=A1_extended | [~ [CL_loaded<=ch_PA2_full] & [swivel<=1 & [~ [[1<=CU_trans_run & ~ [A2L_extended<=1]]] & ~ [ch_TA1_free<=crane_stop_h]]]]] & TL_lower_rs<=1]]]
normalized: E [true U ~ [[TL_lower_rs<=1 & [A2U_rot3_in<=A1_extended | [[swivel<=1 & [~ [ch_TA1_free<=crane_stop_h] & ~ [[1<=CU_trans_run & ~ [A2L_extended<=1]]]]] & ~ [CL_loaded<=ch_PA2_full]]]]]]

abstracting: (CL_loaded<=ch_PA2_full)
states: 1,420,918 (6)
abstracting: (A2L_extended<=1)
states: 1,465,206 (6)
abstracting: (1<=CU_trans_run)
states: 73,032 (4)
abstracting: (ch_TA1_free<=crane_stop_h)
states: 1,449,600 (6)
abstracting: (swivel<=1)
states: 1,465,206 (6)
abstracting: (A2U_rot3_in<=A1_extended)
states: 1,451,998 (6)
abstracting: (TL_lower_rs<=1)
states: 1,465,206 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-13 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.230sec

checking: AG [[~ [DB_trans_rs<=A1L_in] | [~ [[[[~ [[[1<=A2L_ret_run & 1<=A2L_rot1_rs] & ~ [CL_ready_to_transport<=1]]] | [CU_unloaded<=A1L_ext_run | [~ [arm2_waiting_for_swivel_2<=1] | [arm2_stop<=crane_above_feed_belt | A2U_rot3_in<=A2U_rot2_rs]]]] & [arm2_storing<=0 | ~ [[CU_ready_to_ungrasp<=1 & 1<=DB_at_end]]]] | 1<=table_upward]] | press_up<=A2L_rot3_rs]]]
normalized: ~ [E [true U ~ [[[press_up<=A2L_rot3_rs | ~ [[1<=table_upward | [[arm2_storing<=0 | ~ [[CU_ready_to_ungrasp<=1 & 1<=DB_at_end]]] & [[CU_unloaded<=A1L_ext_run | [[arm2_stop<=crane_above_feed_belt | A2U_rot3_in<=A2U_rot2_rs] | ~ [arm2_waiting_for_swivel_2<=1]]] | ~ [[[1<=A2L_ret_run & 1<=A2L_rot1_rs] & ~ [CL_ready_to_transport<=1]]]]]]]] | ~ [DB_trans_rs<=A1L_in]]]]]

abstracting: (DB_trans_rs<=A1L_in)
states: 1,425,910 (6)
abstracting: (CL_ready_to_transport<=1)
states: 1,465,206 (6)
abstracting: (1<=A2L_rot1_rs)
states: 1,360 (3)
abstracting: (1<=A2L_ret_run)
states: 14,114 (4)
abstracting: (arm2_waiting_for_swivel_2<=1)
states: 1,465,206 (6)
abstracting: (A2U_rot3_in<=A2U_rot2_rs)
states: 1,451,998 (6)
abstracting: (arm2_stop<=crane_above_feed_belt)
states: 726,726 (5)
abstracting: (CU_unloaded<=A1L_ext_run)
states: 1,428,962 (6)
abstracting: (1<=DB_at_end)
states: 39,484 (4)
abstracting: (CU_ready_to_ungrasp<=1)
states: 1,465,206 (6)
abstracting: (arm2_storing<=0)
states: 1,322,865 (6)
abstracting: (1<=table_upward)
states: 350,118 (5)
abstracting: (press_up<=A2L_rot3_rs)
states: 1,190,283 (6)
-> the formula is FALSE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-08 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.193sec

checking: AG [~ [[~ [[[~ [[~ [FB_in<=0] & ~ [DB_trans_rs<=TU_rot_rs]]] | [~ [[1<=FB_deliver_rs | TU_rot_run<=0]] | ~ [[1<=crane_lower & table_ready_for_loading<=0]]]] & ~ [[[[blank_forged<=1 | belt1_light_barrier_false<=A2L_in] & [belt2_light_barrier_false<=1 | arm2_store_free<=belt2_light_barrier_true]] & arm1_retract_ext<=table_at_load_angle]]]] & [~ [[A1L_rot2_run<=ch_DC_full | ~ [feed_belt_idle<=0]]] & [TL_lower_run<=1 & 1<=A1U_ret_rs]]]]]
normalized: ~ [E [true U [~ [[~ [[arm1_retract_ext<=table_at_load_angle & [[blank_forged<=1 | belt1_light_barrier_false<=A2L_in] & [belt2_light_barrier_false<=1 | arm2_store_free<=belt2_light_barrier_true]]]] & [[~ [[1<=FB_deliver_rs | TU_rot_run<=0]] | ~ [[1<=crane_lower & table_ready_for_loading<=0]]] | ~ [[~ [DB_trans_rs<=TU_rot_rs] & ~ [FB_in<=0]]]]]] & [[TL_lower_run<=1 & 1<=A1U_ret_rs] & ~ [[A1L_rot2_run<=ch_DC_full | ~ [feed_belt_idle<=0]]]]]]]

abstracting: (feed_belt_idle<=0)
states: 516,321 (5)
abstracting: (A1L_rot2_run<=ch_DC_full)
states: 1,462,966 (6)
abstracting: (1<=A1U_ret_rs)
states: 7,498 (3)
abstracting: (TL_lower_run<=1)
states: 1,465,206 (6)
abstracting: (FB_in<=0)
states: 1,456,466 (6)
abstracting: (DB_trans_rs<=TU_rot_rs)
states: 1,426,238 (6)
abstracting: (table_ready_for_loading<=0)
states: 1,269,840 (6)
abstracting: (1<=crane_lower)
states: 246,402 (5)
abstracting: (TU_rot_run<=0)
states: 1,410,710 (6)
abstracting: (1<=FB_deliver_rs)
states: 8,740 (3)
abstracting: (arm2_store_free<=belt2_light_barrier_true)
states: 977,997 (5)
abstracting: (belt2_light_barrier_false<=1)
states: 1,465,206 (6)
abstracting: (belt1_light_barrier_false<=A2L_in)
states: 48,714 (4)
abstracting: (blank_forged<=1)
states: 1,465,206 (6)
abstracting: (arm1_retract_ext<=table_at_load_angle)
states: 149,958 (5)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-02 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.127sec

checking: AG [~ [[[~ [[[[A1U_extendet<=1 & belt1_light_barrier_true<=arm1_waiting_for_swivel_1] & [arm1_stop<=arm2_pick_up_angle & arm1_having_swivel_1<=1]] & [[A2L_rot2_in<=0 | CU_ready_to_ungrasp<=0] & ~ [1<=arm1_pick_up_angle]]]] | [[arm2_waiting_for_swivel_1<=A2U_rot2_rs | A2U_rotated<=1] | [A2U_ret_run<=arm2_pick_up_angle | [TL_rot_run<=1 & [1<=ch_FT_free & A2U_rot2_in<=ch_CF_full]]]]] & ~ [[~ [[crane_stop_h<=1 | table_upward<=ch_FT_full]] | [CU_unloaded<=CU_out | [~ [crane_mag_off<=FB_trans_run] | [crane_mag_on<=1 & A1U_rot3_rs<=1]]]]]]]]
normalized: ~ [E [true U [~ [[[CU_unloaded<=CU_out | [[crane_mag_on<=1 & A1U_rot3_rs<=1] | ~ [crane_mag_off<=FB_trans_run]]] | ~ [[crane_stop_h<=1 | table_upward<=ch_FT_full]]]] & [[[A2U_ret_run<=arm2_pick_up_angle | [TL_rot_run<=1 & [1<=ch_FT_free & A2U_rot2_in<=ch_CF_full]]] | [arm2_waiting_for_swivel_1<=A2U_rot2_rs | A2U_rotated<=1]] | ~ [[[~ [1<=arm1_pick_up_angle] & [A2L_rot2_in<=0 | CU_ready_to_ungrasp<=0]] & [[arm1_stop<=arm2_pick_up_angle & arm1_having_swivel_1<=1] & [A1U_extendet<=1 & belt1_light_barrier_true<=arm1_waiting_for_swivel_1]]]]]]]]

abstracting: (belt1_light_barrier_true<=arm1_waiting_for_swivel_1)
states: 1,430,246 (6)
abstracting: (A1U_extendet<=1)
states: 1,465,206 (6)
abstracting: (arm1_having_swivel_1<=1)
states: 1,465,206 (6)
abstracting: (arm1_stop<=arm2_pick_up_angle)
states: 338,111 (5)
abstracting: (CU_ready_to_ungrasp<=0)
states: 1,428,690 (6)
abstracting: (A2L_rot2_in<=0)
states: 1,459,509 (6)
abstracting: (1<=arm1_pick_up_angle)
states: 251,574 (5)
abstracting: (A2U_rotated<=1)
states: 1,465,206 (6)
abstracting: (arm2_waiting_for_swivel_1<=A2U_rot2_rs)
states: 1,441,793 (6)
abstracting: (A2U_rot2_in<=ch_CF_full)
states: 1,459,156 (6)
abstracting: (1<=ch_FT_free)
states: 89,458 (4)
abstracting: (TL_rot_run<=1)
states: 1,465,206 (6)
abstracting: (A2U_ret_run<=arm2_pick_up_angle)
states: 1,425,964 (6)
abstracting: (table_upward<=ch_FT_full)
states: 1,115,088 (6)
abstracting: (crane_stop_h<=1)
states: 1,465,206 (6)
abstracting: (crane_mag_off<=FB_trans_run)
states: 693,656 (5)
abstracting: (A1U_rot3_rs<=1)
states: 1,465,206 (6)
abstracting: (crane_mag_on<=1)
states: 1,465,206 (6)
abstracting: (CU_unloaded<=CU_out)
states: 1,428,690 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-11 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.104sec

checking: EF [[[[1<=feed_belt_occupied & [~ [1<=deposit_belt_idle] & [~ [A1U_rot1_in<=FB_out] | ~ [[[~ [1<=A1L_rot3_run] | [1<=arm1_release_angle | 1<=arm1_pick_up_angle]] & [~ [deposit_belt_occupied<=FB_in] | ~ [A2L_rot1_rs<=0]]]]]]] | ~ [ch_A2D_full<=0]] & [[[[1<=ch_FT_full & ~ [1<=crane_above_deposit_belt]] | ~ [[[arm1_backward<=0 & [[FB_deliver_rs<=0 | arm2_pick_up_ext<=0] & [1<=crane_lift | crane_storing<=robot_stop]]] & [[[1<=A1L_ret_run & A1L_out<=1] | arm2_pick_up_angle<=A2L_rot3_run] | [~ [ch_A2D_free<=0] | [1<=A2U_ret_rs & 1<=A1L_rot1_rs]]]]]] | [ch_CF_free<=0 | [1<=robot_stop & A2L_rot2_rs<=TL_out]]] & arm2_backward<=0]]]
normalized: E [true U [[arm2_backward<=0 & [[~ [[[[~ [ch_A2D_free<=0] | [1<=A2U_ret_rs & 1<=A1L_rot1_rs]] | [arm2_pick_up_angle<=A2L_rot3_run | [1<=A1L_ret_run & A1L_out<=1]]] & [arm1_backward<=0 & [[1<=crane_lift | crane_storing<=robot_stop] & [FB_deliver_rs<=0 | arm2_pick_up_ext<=0]]]]] | [1<=ch_FT_full & ~ [1<=crane_above_deposit_belt]]] | [ch_CF_free<=0 | [1<=robot_stop & A2L_rot2_rs<=TL_out]]]] & [~ [ch_A2D_full<=0] | [1<=feed_belt_occupied & [[~ [[[~ [A2L_rot1_rs<=0] | ~ [deposit_belt_occupied<=FB_in]] & [[1<=arm1_release_angle | 1<=arm1_pick_up_angle] | ~ [1<=A1L_rot3_run]]]] | ~ [A1U_rot1_in<=FB_out]] & ~ [1<=deposit_belt_idle]]]]]]

abstracting: (1<=deposit_belt_idle)
states: 738,736 (5)
abstracting: (A1U_rot1_in<=FB_out)
states: 1,457,754 (6)
abstracting: (1<=A1L_rot3_run)
states: 7,788 (3)
abstracting: (1<=arm1_pick_up_angle)
states: 251,574 (5)
abstracting: (1<=arm1_release_angle)
states: 322,618 (5)
abstracting: (deposit_belt_occupied<=FB_in)
states: 1,365,354 (6)
abstracting: (A2L_rot1_rs<=0)
states: 1,463,846 (6)
abstracting: (1<=feed_belt_occupied)
states: 113,060 (5)
abstracting: (ch_A2D_full<=0)
states: 1,364,998 (6)
abstracting: (A2L_rot2_rs<=TL_out)
states: 1,459,863 (6)
abstracting: (1<=robot_stop)
states: 1,285,983 (6)
abstracting: (ch_CF_free<=0)
states: 1,140,605 (6)
abstracting: (1<=crane_above_deposit_belt)
states: 835,254 (5)
abstracting: (1<=ch_FT_full)
states: 27,248 (4)
abstracting: (arm2_pick_up_ext<=0)
states: 1,429,921 (6)
abstracting: (FB_deliver_rs<=0)
states: 1,456,466 (6)
abstracting: (crane_storing<=robot_stop)
states: 1,455,375 (6)
abstracting: (1<=crane_lift)
states: 246,402 (5)
abstracting: (arm1_backward<=0)
states: 1,427,346 (6)
abstracting: (A1L_out<=1)
states: 1,465,206 (6)
abstracting: (1<=A1L_ret_run)
states: 10,244 (4)
abstracting: (arm2_pick_up_angle<=A2L_rot3_run)
states: 1,209,872 (6)
abstracting: (1<=A1L_rot1_rs)
states: 1,482 (3)
abstracting: (1<=A2U_ret_rs)
states: 19,621 (4)
abstracting: (ch_A2D_free<=0)
states: 1,194,300 (6)
abstracting: (arm2_backward<=0)
states: 1,385,172 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-09 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 2.453sec

checking: EF [[[~ [[A1U_rot3_run<=1 & [~ [[~ [1<=DB_trans_run] & [CL_out<=0 | arm1_stop<=1]]] | ~ [1<=A2L_loaded]]]] & ~ [TU_lift_run<=A1U_out]] & [[[[~ [[[A1U_rot1_rs<=0 & DB_at_end<=TU_in] | [CL_trans_run<=1 & CU_in<=A2L_in]]] | A2U_rot2_rs<=ch_PA2_full] & CU_out<=0] | [~ [[[~ [arm2_store_free<=0] | ch_DC_free<=1] | [[A2U_ret_rs<=1 & ~ [A2U_ext_run<=1]] & ~ [[1<=swivel & forge_run<=1]]]]] | ~ [[1<=PL_lower_run & ~ [1<=ch_A1P_free]]]]] & [[[1<=arm2_magnet_on | CL_loaded<=1] & ~ [A1L_rot1_rs<=1]] | [table_top_pos<=arm2_having_swivel_2 | [[[[[belt1_stop<=arm2_release_ext & 1<=A2U_ret_rs] & [A1L_in<=TL_in & feed_belt_empty<=1]] | A1L_ret_rs<=A2L_rot3_run] | [[[arm2_waiting_for_swivel_1<=0 & 1<=ch_FT_free] | [1<=crane_lower | arm2_waiting_for_swivel_2<=arm2_having_swivel_1]] & A2U_ret_rs<=arm2_retract_ext]] & [[arm2_magnet_off<=0 & PU_lower_rs<=0] | [table_top_pos<=A2L_rot2_in & [[TU_in<=0 | TU_rot_run<=0] & 1<=ch_A1P_free]]]]]]]]]
normalized: E [true U [[[[CU_out<=0 & [A2U_rot2_rs<=ch_PA2_full | ~ [[[CL_trans_run<=1 & CU_in<=A2L_in] | [A1U_rot1_rs<=0 & DB_at_end<=TU_in]]]]] | [~ [[1<=PL_lower_run & ~ [1<=ch_A1P_free]]] | ~ [[[ch_DC_free<=1 | ~ [arm2_store_free<=0]] | [~ [[1<=swivel & forge_run<=1]] & [A2U_ret_rs<=1 & ~ [A2U_ext_run<=1]]]]]]] & [[table_top_pos<=arm2_having_swivel_2 | [[[A1L_ret_rs<=A2L_rot3_run | [[A1L_in<=TL_in & feed_belt_empty<=1] & [belt1_stop<=arm2_release_ext & 1<=A2U_ret_rs]]] | [A2U_ret_rs<=arm2_retract_ext & [[1<=crane_lower | arm2_waiting_for_swivel_2<=arm2_having_swivel_1] | [arm2_waiting_for_swivel_1<=0 & 1<=ch_FT_free]]]] & [[table_top_pos<=A2L_rot2_in & [1<=ch_A1P_free & [TU_in<=0 | TU_rot_run<=0]]] | [arm2_magnet_off<=0 & PU_lower_rs<=0]]]] | [~ [A1L_rot1_rs<=1] & [1<=arm2_magnet_on | CL_loaded<=1]]]] & [~ [[A1U_rot3_run<=1 & [~ [1<=A2L_loaded] | ~ [[[CL_out<=0 | arm1_stop<=1] & ~ [1<=DB_trans_run]]]]]] & ~ [TU_lift_run<=A1U_out]]]]

abstracting: (TU_lift_run<=A1U_out)
states: 1,410,958 (6)
abstracting: (1<=DB_trans_run)
states: 78,968 (4)
abstracting: (arm1_stop<=1)
states: 1,465,206 (6)
abstracting: (CL_out<=0)
states: 1,419,588 (6)
abstracting: (1<=A2L_loaded)
states: 7,057 (3)
abstracting: (A1U_rot3_run<=1)
states: 1,465,206 (6)
abstracting: (CL_loaded<=1)
states: 1,465,206 (6)
abstracting: (1<=arm2_magnet_on)
states: 497,902 (5)
abstracting: (A1L_rot1_rs<=1)
states: 1,465,206 (6)
abstracting: (PU_lower_rs<=0)
states: 1,421,925 (6)
abstracting: (arm2_magnet_off<=0)
states: 497,902 (5)
abstracting: (TU_rot_run<=0)
states: 1,410,710 (6)
abstracting: (TU_in<=0)
states: 1,437,958 (6)
abstracting: (1<=ch_A1P_free)
states: 91,641 (4)
abstracting: (table_top_pos<=A2L_rot2_in)
states: 630,296 (5)
abstracting: (1<=ch_FT_free)
states: 89,458 (4)
abstracting: (arm2_waiting_for_swivel_1<=0)
states: 1,441,793 (6)
abstracting: (arm2_waiting_for_swivel_2<=arm2_having_swivel_1)
states: 1,414,259 (6)
abstracting: (1<=crane_lower)
states: 246,402 (5)
abstracting: (A2U_ret_rs<=arm2_retract_ext)
states: 1,465,206 (6)
abstracting: (1<=A2U_ret_rs)
states: 19,621 (4)
abstracting: (belt1_stop<=arm2_release_ext)
states: 146,615 (5)
abstracting: (feed_belt_empty<=1)
states: 1,465,206 (6)
abstracting: (A1L_in<=TL_in)
states: 1,458,668 (6)
abstracting: (A1L_ret_rs<=A2L_rot3_run)
states: 1,460,084 (6)
abstracting: (table_top_pos<=arm2_having_swivel_2)
states: 712,010 (5)
abstracting: (A2U_ext_run<=1)
states: 1,465,206 (6)
abstracting: (A2U_ret_rs<=1)
states: 1,465,206 (6)
abstracting: (forge_run<=1)
states: 1,465,206 (6)
abstracting: (1<=swivel)
states: 401,383 (5)
abstracting: (arm2_store_free<=0)
states: 889,065 (5)
abstracting: (ch_DC_free<=1)
states: 1,465,206 (6)
abstracting: (1<=ch_A1P_free)
states: 91,641 (4)
abstracting: (1<=PL_lower_run)
states: 183,282 (5)
abstracting: (DB_at_end<=TU_in)
states: 1,426,238 (6)
abstracting: (A1U_rot1_rs<=0)
states: 1,457,708 (6)
abstracting: (CU_in<=A2L_in)
states: 1,429,068 (6)
abstracting: (CL_trans_run<=1)
states: 1,465,206 (6)
abstracting: (A2U_rot2_rs<=ch_PA2_full)
states: 1,459,596 (6)
abstracting: (CU_out<=0)
states: 1,428,690 (6)
-> the formula is TRUE

FORMULA ParamProductionCell-PT-3-ReachabilityCardinality-15 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.502sec

totally nodes used: 2502264 (2.5e+06)
number of garbage collections: 0
fire ops cache: hits/miss/sum: 1490129 11246259 12736388
used/not used/entry size/cache size: 11930015 55178849 16 1024MB
basic ops cache: hits/miss/sum: 389781 3428925 3818706
used/not used/entry size/cache size: 5002199 11775017 12 192MB
unary ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 8 128MB
abstract ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 12 192MB
state nr cache: hits/miss/sum: 32214 359552 391766
used/not used/entry size/cache size: 352579 8036029 32 256MB
max state cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 8388608 32 256MB
uniqueHash elements/entry size/size: 67108864 4 256MB
0 65074592
1 1663151
2 291352
3 65197
4 12348
5 1943
6 256
7 25
8 0
9 0
>= 10 0

Total processing time: 0m11.728sec


BK_STOP 1679040898876

--------------------
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 ReachabilityCardinality -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 0.000sec


iterations count:11308 (55), effective:833 (4)

initing FirstDep: 0m 0.000sec


iterations count:5975 (29), effective:384 (1)

iterations count:7683 (38), effective:464 (2)

iterations count:5848 (28), effective:378 (1)

iterations count:6018 (29), effective:388 (1)

iterations count:7239 (35), effective:522 (2)

iterations count:5626 (27), effective:344 (1)

iterations count:5981 (29), effective:384 (1)

iterations count:6142 (30), effective:416 (2)

iterations count:7634 (37), effective:499 (2)

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="ParamProductionCell-PT-3"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="marciexred"
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 marciexred"
echo " Input is ParamProductionCell-PT-3, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r266-smll-167863540900390"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ParamProductionCell-PT-3.tgz
mv ParamProductionCell-PT-3 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;